UREGENTLY need help ladies.

I just had sex, and now the middle of my stomach on the right side is hurting terribly it’s all swollen and hard. Something feels loose in there. I have had trouble after my gallbladder surgery back in December of 2018 but I’m just in a lot of pain. Should I go to ER? I only ask because I went from Sept-Dec and they told me I was basically crazy and when they finally took my gallbladder out, there was over 120 gallstones. I’ve had issues since but this is just after sex and I’ve never experienced this pain before

Have y’all had it before, I know y’all aren’t doctors but has anyone experienced anything similar?