its different EVERYTIME hun, sometimes you get a little bit sick with it, sometimes you get very sick with it. Everytime is different, the first time I had a sv it was in gr 8 which was 3 years ago and I caught it from mom who was sick from both ends, I however the following night had a huge explosion of d* for an hour and was nauseous for a day or so. The next time I caught one (last year) I had d* over 100 times and V*ed twice, also ended up in the hospital because I was so dehydrated that I hadnt peed in 3 days and I had several near fainting episodes. They gave me looooooooooooots of fluids, looooots of gravol, I felt so much better, until the gravol wore off :/ this lasted 5 long terrible days. So everytime is different and everyone reacts differently every time.