I've been getting chills,headache,tummy ache and dizziness for 3 days now. i've taken aleve (naproxen) but i don't feel better. then i threw up today,can't eat?

Viral illness?: Sounds as if you should either see a doctor ASAP or try OTC cold preparations to ameliorate symptoms and if not effective, see a doctor. Hope you are better soon.

Time to see a doctor: This may be a simple illness that will go away on its own or it may be something serious. Only you know how sick you feel. If this is unusually severe, you can't keep fluids down, you aren't making urine or you feel as though you are likely to pass out when you stand, it's time to go to the ER and get fluids via IV, as well as a diagnosis. If you have sick contacts you probably have the same bug.

Abdominal prob 4 ER: I think the chills, abdominal pain, & vomiting could be pointing to an abdominal problem... appendicitis? Gallbladder stone? Something worse? It's probably not more serious than an "-itis" or infxn, but get to an ER or urgent care center & get checked by a doctor quick. Don't monkey around w/ Aleve (naproxen) as it will do nothing for chills and vomiting, & may increase ur risk of bleeding if u need surgery