HELP PLEASE

I gave my partner a blowjob he cummed but did clean we went straight to doing it. And since December 24th I haven't been feeling like myself. I can't sleep at night but when I do fall asleep I can sleep for hours, I don't have an appetite but once food is in front of me I stuff my face. I'm getting slightly mild like period cramps. Never felt this way, I'm getting back aches & my body is hot I feel like I'm on my period but i don't have bleeding or anything. Has anyone felt this before??