1 week ago i had flushot after 3 days i have severe muscleandjoint ache stillcontinue blood work shows normal my gp check my reflex normal maybe flu?

Flu shots do not alw: Always prevent the flu. People can get the flu after a flu shot.

It could be : A vaccine, like any medicine, could possibly cause serious problems, such as severe allergic reactions. The risk of a vaccine causing serious harm, or death, is extremely small. Some of the side effects of the vaccine. Soreness, redness, or swelling where the shot was given hoarseness; sore, red or itchy eyes; cough fever aches headache itching fatigue.