not feeling right

So I was sick two days straight (I never get sick so I take it way harder than usual) and I was running a fever on & off and vomiting. Now I feel better (no fever or vomiting) but I feel... off? Like my lower belly is full almost like I'm on my period but... idk what it is? I wanna dismiss it as just gassiness but it just feels off to me. Maybe I'm just recovering from puking two days straight?