Advice...

Hi! This is the first time I'm actually posting on here and I need some help.

I'm very UTI prone, especially after sex. I've been taken cranberry supplements to cease this and it's worked!! But as of late again I've had to pee frequently... and sometimes I've accidentally wet the bed a little bit. But the thing is I don't think it's a UTI because it doesn't hurt when I pee. I do have a habit of making myself physically sick by worrying a lot... what do you guys think? Do you think I'm over worrying or do you think there's an underlying problem?