so for 3 days, I was sick, constantly sleeping, not eating, barely drinking, but yesterday I started eating a little but, but feeling so horrible afterward, so eating was rare, but later that night, my stool was black even my pee had a reddish tint, and last night, I was boiling hot, I wasn't able to sleep, and I've had massive lower stomach pain, and every time I stand up, there's a sharp pain coming from the side of my head, and I'm constantly feeling like I'm gonna vomit, what's wrong with me, I couldn't even find anything on the internet about it, I'm a 17-year-old Female, 5'4" 174lb, I thought it was my workouts making me sick, but I'm sure that's not the case