I did 500 mg of sust yesterday. It has never been this painfull before. I know sust is supposed to hurt but this is a completely different level of pain. Before my butt just hurt now it hurts so bad I can't sleep. I am getting hot and cold flashes and almost threw up once. My muscles are very tense and shaky. These sound like flu symptoms but the flu allready came through here and I got a flu shot anyway. I am miserable, can this all be related to the sust? I did everything correct like I always do. Any tips on how to control the pain.