I have been having a lot of neck and back pain, now it has become worse, i have a sharp pain on both sides of my neck. now i have sore throat and it's not tonsils and a massive headache, i also feel like i have flu.

Doctor can evaluate: Throat pain can be from a strep throat infection (antibiotics are needed), a cold or influenza (antibiotics usually not used), or from some other cause such as allergies or irritants. Usually, a person sees the doctor if the sore throat is bothersome, recurrent, or doesn't go quickly (mainly to check for strep throat). Sore throats can heal on their own, but antibiotics are used for strep throat.