Why do I have a constant bad gut feeling about my friend for no clear reason?

Have you ever felt really really negative gut feeling about someone, but you can't put a finger on what the reason is?

Why is it like that?

Since my gut feelings often are right, i am afraid something might happen, maybe an accident cause by the person i have bad gut feelings about. Or maybe she is saying bad things about me behind my back or something. Not that it matter much since i know myself and have never done something really bad.

So its about my friend, she hasn't done anything overly bad. But i don't know why my trust for her is crumbling and i started to treat her in a neutral way.

Many small things she has done and putting them together and since she hasn't changed much, it causes my trust for her ro crumble?

I can't trust her to be alone in my apartment, i can't trust her alone with my pet, drink or food. I can't trust her alone with my boyfriend either.

I ve even started to not tell her her much about my private life either.

I am thinking that i might be paranoid and need help? I am confused and i might be the problem because i don't have real proof that she could harm me.

So, why am i feeling like that when she hasn't done anything very bad?
Why do I have a constant bad gut feeling about my friend for no clear reason?
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