Painful bladder !!!!

Minna
Hi ladies, please comment if you have/are experiencing this as well. I am 23weeks pregnant and for the last 24 hours have beef feeling heavy and painful bladder. Went for a urine infection check and came back negative. Midwife seems to not know what it is yet but I feel really uncomfortable. It's at it's worse right after I have peed. Any ideas to releaf this ?