Stressed for 4 months now

Hello, this might be long but I am so desperate I dont know what to do anymore. I have this feeling of urination, i'll go and once im done it will burn or feel like I have to go again. The symptom is similar as that to a uti just that if I sit this out it will go away. It is on and off and its extremely uncomfrotable and I just dont feel normal, it is painful and im not sure what it is at this point. I tested negative for UTI, and STD's. Has anyone ever experienced something like this?