Please respond!!!!

Hi! I was hoping for some suggestions on my situation. For the past month and a half I have had the feeling I need to pee ALL the time. However, I have noticed that when I don't think about it or am busy doing something else, it subsides. I don't wake up at night or anything. It doesn't hurt. It's just a huge nuisance. I know I'm not pregnant as I have had my period, taken three tests which were all negative and have been on the pill for 6 months. I am thinking it may be due to stress? As it goes away when I'm distracted? If you have any suggestions I would really be appreciative!!! It's just getting annoying. Thank you for your time.