I don't know what to do

A✨

Ok so a while ago me and my boyfriend broke up, and he slept with another girl. We got back together and when we had sex, the very next day I felt so off downstairs.. my vagina was itchy as fuck!! And when I needed to go piss it felt like I had to push something out.. And my vagina felt swollen, including my flaps 😭 I took a look at it and I was fat and red 🔫 and I had to shower every morning when I woke up and every night before I slept sometimes even during the day.. I'm a full time carer, I look after my sick grandma so it's difficult to go check up.. but once I got my period It stopped feeling like that.. should I still go doctors? Please help