I haven't use any medicines. I have good food nutritions. But, I have regular fart problem; I gas up regularly which has made me uncomfortable to be in group/social functions. My nose is block. I can't have good sleep at night (hardly sleep for 3/4 hours after waking up 3/4 times at night). During day time, I can't sleep at all. I also lost my weight (nearly 5-10Kgs); is it a symptoms of HIV ? What stage is this ? please help.