 [ Symptoms ] is it normal that my period is late almost 8 days now i have never had sex so i can not be pregnant i am 16 and i am always regular it was ramadan recently so i fasted and my sleeping pattern kind of messed up i went to sleep at 4 am and woke up at 3 pm like the whole month but before that i have always went to sleep at like 11 pm plus i ate a lot less everyone says i have lost weight and i do not know if i should be worried or not i would reaaaaaaally appreciate your help [ Disease ] aids is the final stage of hiv infection when the immune system cd4 cells drop to a very low level a person is ability to fight infection is lost in addition there are several conditions that occur in people with hiv infection with this degree of immune system failure these are called aids defining illnesses according to the cdc 1 051 875 people in the u s have been diagnosed with aids since the disease was first diagnosed in 1981 they also estimate that 583 298 have died from the disease in the u s