INFECTION OR NAH

It's about to get a little TMI ladies. I just found out my (ex)boyfriend of two years cheated on me.. twice. Well I've always had a problem with my urethra (painful urination) & I've been to the gynecologist about it before he cheated. Anyways, sometimes I would bleed a tiny bit after sex. During sex, I feel pain and almost like its pressure in/on my urethra. I have to take Probiotics bc I lack lactobacillus (bacteria that fights off bad germs in vagina) but I have a lot of thick, creamy white discharge all the time. Now when it dries, it becomes a dark yellow. There isn't a bad odor or itching FYI. HELP. ANY INFO WOULD BE GREAT. Also- I think I bled after sex because it was so rough because  it would almost feel as if it ripped some.