I had hep b vaccination on monday morning. that night i had a sore throat. i woke up with body ache, sore throat, headache. today i am exhausted, i have sinus, headache, i think mild fever, body ache, back and neck ache. should i go to a doc?

Doctor can examine: New throat pain can be from a strep throat infection (antibiotics 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 away quickly (mainly to look for strep). If wondering about getting Tamiflu for the flu, one needs to see her doctor early.