My 5 year old daughter can't go to sleep bc every time she goes to bed she feels like she has to pee is there anything I can give her to help her?

Soothing and Comfort. Probably your daughter has begun to associate bedtime with some level of anxiety. The urge to pee can be indicative of some sense of insecurity. It may help to establish a routine that includes going to the bathroom (you probably already do this) then perhaps reading or doing something that is relaxing for her while laying in the bed. Changing the routine will likely change the sensation.