Why Am I Having These Thoughts? Understanding Intrusive Thoughts

You're driving and suddenly imagine swerving into oncoming traffic.

You're holding your baby and have a disturbing image of something happening to them.

You're in a relationship you care about and suddenly wonder, what if I don't actually love my partner?

Or you have a thought that feels so unlike you that you immediately start wondering what it says about you.

Intrusive thoughts can feel disturbing, overwhelming, and isolating, and may lead you to worry about what having them means about who you are. An unwanted thought isn't necessarily a reflection of your intentions, values, or character. However, what comes after the thought can give you more insight into what you're experiencing and how to get support.

What Causes Intrusive Thoughts?

There isn't one single cause of intrusive thoughts. In many cases, they are simply a byproduct of having a brain that constantly generates thoughts, images, memories, and possibilities. Your mind doesn't filter everything before it reaches your awareness, which means an odd, disturbing, or completely unwanted thought can show up without any particular meaning behind it.

Intrusive thoughts may become more noticeable during periods when you're stressed, exhausted, anxious, or overwhelmed. They can also occur alongside conditions such as OCD, anxiety disorders, depression, and trauma (Hinuma et al., 2025). For some people, a thought becomes especially uncomfortable when it centers on something or someone they care deeply about or fear losing. The more threatening or unacceptable the thought feels, the more likely you may be to pay attention to it and try to understand why you had it.

The Thought Itself May Not Be the Problem

Most people have thoughts that are strange or difficult to explain periodically. The mind produces all kinds of material, and we don't consciously choose everything that crosses our minds. Having a thought doesn't mean you wanted it, agree with it, or intend to act on it.

What can make an intrusive thought especially frightening is the meaning you attach to it. You might think:

What if I hurt someone?

Why did I think that?

Does this mean I could actually do it?

If the thought goes against your values or feels completely unlike you, you may react strongly, and instead of letting it pass, you analyze it, check your feelings, or look for reassurance about what it means. The more important it feels to figure out, the harder it can become to let it go.

When Intrusive Thoughts Start Running Your Life

Trying to make sense of an intrusive thought can become a cycle. A thought creates anxiety or doubt, so you do something to feel more certain. You might replay a conversation, check your feelings toward your partner, search online for reassurance, or avoid something that's associated with the thought.

These responses may bring temporary relief, but they can also reinforce the idea that the thought is important and needs to be solved. The next time it appears, you may feel the same urgency to check, analyze, or avoid. Sometimes this pattern happens almost entirely in your head. You may spend hours reviewing memories, monitoring your reactions, or trying to reach a level of certainty.

When working with patients, I pay attention to this cycle because it often tells us more than the thought itself. The question isn't only, What was the thought? It's also, What happens after it shows up, and how much space is it taking up in your life?

Intrusive Thoughts and OCD

This cycle can occur with several mental health concerns, but it is particularly important when talking about obsessive-compulsive disorder (OCD). Having intrusive thoughts does not automatically mean you have OCD. Almost everyone experiences unwanted thoughts from time to time.

With OCD, intrusive thoughts or images, known as obsessions, can become persistent and distressing. A person may then develop compulsions or other behaviors to reduce the anxiety or uncertainty they create. These aren't always visible. Mental reviewing, checking your memory, comparing feelings, seeking reassurance, or repeatedly trying to "figure out" a thought can all become part of the cycle.

The content can vary widely. Someone might worry about contamination or illness, while someone else fears harming another person, making a terrible mistake, offending God, being secretly attracted to someone, or discovering they don't actually love their partner.

When I explore a possible OCD diagnosis with a patient, we look beyond the thought itself. We consider how often it occurs, how distressing it is, what your response is, and whether the pattern is interfering with your life.

What Can You Do When Intrusive Thoughts Show Up?

The instinct to immediately push an intrusive thought away is understandable. Unfortunately, fighting with a thought can sometimes make it more persistent. Instead of trying to figure out exactly why the thought appeared or what it says about you, it can help to notice what your mind is doing and resist the urge to solve it right away.

That can look like simply recognizing, I'm having that thought again, rather than trying to investigate it or get rid of it. If you notice yourself checking your feelings, reviewing what happened, Googling symptoms, or asking someone for reassurance, start paying attention to that response, too. This practice of acknowledging what's happening internally can help you learn to distinguish between responding to a real problem and trying to achieve absolute certainty about something your mind has labeled as threatening.

For some people, that is difficult to do alone. If intrusive thoughts have become a major source of anxiety, therapy can help you understand the pattern and develop a different way of responding to it.

When to Seek Help for Unwanted Thoughts

Consider talking with a mental health professional if intrusive thoughts are taking up significant amounts of your day, changing the way you behave, interfering with relationships and work, or causing you to avoid things you once enjoyed. It's also worth seeking help if you feel caught in repetitive mental checking or reassurance-seeking and can't seem to stop, even when you recognize that it isn't helping.

You don't need to know whether what you're experiencing is OCD, anxiety, trauma, or something else before reaching out for help. A trained OCD therapist can help you look at the broader context, including your history, relationships, cultural background, identity, and behavioral patterns.

Therapy for Intrusive Thoughts in Seattle

At Existential Psychiatry, I support adults facing intrusive thoughts, OCD, anxiety, trauma, and PTSD through individualized, trauma-informed therapy, diagnostic assessment, and medication management. I take a holistic approach to therapy and psychiatry, which means I look at the whole picture, and you're never reduced to a list of symptoms or a label. If intrusive thoughts are impacting your daily life or causing you distress, please reach out to schedule a free consultation.

Written by Existential Psychiatry Staff

References

• Hinuma, S., Ogishima, H., Shimada, H., Tanaka, Y., Osao, M., Moriishi, C., & Obata, S. (2025). Classification of intrusive thought patterns based on differences in the mechanisms of occurrence and persistence. Frontiers in Psychiatry, 16. https://doi.org/10.3389/fpsyt.2025.1520496