The medicine course for seasonal flu didn't work.so i'm gonna go for a follow up. what q's shud i ask and what tests should i do?

Is it actual 'flu': You need a diagnosis- so hopefully they can tell you specifically, then the treatment should be effective. You should ask what are the 'possibilities' (differential diagnosis). If you have lab reports then it might be worth copying if you want a second opinion about your illness. The flu should go away after 5 days or so, so if you're still sick, you need to know from what. Hope you feel better.