Thank you and welcome to HCM
After reading through your description, I have the feeling that you are simply going through the recovery face of your flu
syndrome and will require sometime to complete get to your feet.
etc are among the numerous symptoms after you recover from an illness like flu. Get some rest, eat good food, cheer up and hand out with close friends. If you are still feeling anxious, you can consult with a doctor for antianxiety remedy.
Hope this helps