Had Flu Injection 27thSeptember 2015. From 7th October 2015 I

Had flu injection 27thSeptember 2015. From 7th October 2015 I have a constant headache,runny nose,husky voice. Swollen and tender reactive lymph node and generally feel ill. I have not had a cold of any description for 30years. Could this have been caused by the flu jab. They tell me there is no treatment for a virus! What do you advise? 4 months is a long time to suffer in this way