did you get the flu from the modern shots? They are not supposed to be a live virus. I never got the flu shot until I got the flu and then was so sick I thought I was going to die, really. Now I get the flu shot and in about 30 years haven't had a reaction except maybe a sore arm a day or two.
I have had an unrelenting cough twice in the last few years which was bronchitis and the right drugs and then when nothing was coming up a prescription cough gel which worked fine. That cough was awful.