Quit 5 days ago, on day 4 I started to feel like I was getting the flu. I started with a cough and now I have severe body aches all over. My back hurts, my knees, elbows, my neck on both sides is very stiff and if I close my eyes and touch my eye lid even my eyes hurt with pressure applied. I feel like someone has sucked the life out of me. I don't know how I am able to function.