Sudden onset: severe body aches, fever, headache. no congestion/sore thrt /cough. 101-102.5 fvr.vomited 3x yest. but no other stomach discomfort. flu?

Sudden onset: Yes your symptoms represent a flu like illness.

Sounds like it: Assuming that you are otherwise healthy, the symptoms you provide could very well be a viral syndrome, possibly influenza. The recommendations would include: bed rest, tylenol (acetaminophen) or motrin, clear liquids. You might also consider taking tamiflu, a drug intended to decrease the length of flu symptoms, but must be started within 48 hours after onset of symptoms, but will require a prescription.