I don't know what's wrong with me. Please help!

[doeebay]

Hi,
I'm not sure if this is where to put this as I'm am not sure what is wrong with me so I'll just going to start writing. About two weeks ago I got strep throat and for three days I had a very bad fever. That passed and I no longer have neither of those things. But after those cleared I noticed that I had no appetite at all. Just smelling or looking at food makes me want to throw up. It's really hard for me to eat but I'm getting better at keeping food down. Along with that my back hurts a lot. To the point that it feels like it's on fire. The muscles in my butt, legs, and arms hurt as well. My neck feels stiff and I feel like I'm being pricked by needles. Falling asleep and staying asleep is becoming hard for me (I'm averaging about 3 to 4 hours). I'm forgetting things and doing small task leaves me out of breath. Two more things I've noticed is that my chest and hands are itchy and I've been feeling "high" even though I'm not. I'm also taking metronidazole for BV and I know that makes you lose your appetite. Should I stop taking it? Please help! Thank you :)