Advice please,im feeling this,what can it be?

Hey everyone, im a 31 year old female. i feel the need to pee every 10 mins, pressure in my lower abdomen (internal pressure) and the feeling im not done even when iam.when i go again aftter 10 mins, only a few drops come out. i dont have any burning sensation or pain at all, just pressure and feeling some muscles inside spasming (and sometimes i feel the need to clutch my abdomen muscles cause of the pressure).its been keeping me up at night,i feel i have to pee but i end up with a few drops every time but its the pressure and muscle spasms that kep me up,its an extremely annoying feeling. what can it be?uti pehaps?i had a tiny bit of blood clots when i wiped a few days ago and the doctor gave me penicilin.should i start taking it?any advice please,thank you