Hi, I have been feeling ill for the last week or so, nauseated, stomach aches, body aches and headaches. Then 2 nights ago I was laying in bed and just felt really really sick, my legs where aching like crazy and i couldnt lay still. I got up and decided to have a shower. After about maybe 2 or 3 minutes my vision went a bit blurry i felt really sick and the next thing i know Im waking up in the shower lyeing on the ground with water spraying in my face- so i blacked out....I went back to bed and got the chills up, felt sick still but got to sleep . I havent blacked out again but the last couple days have lost my appetite a bit and just generally feel off.....what could have caused me to black out?