Welcome to HCM
After going through history it seems that you suffered a URI ( Upper Respiratory Infection
) may be you got secondary bacterial infection with bronchitis
If your wheezing is persisting you should go for PFT (Pulmonary function test ) to know bronchospam and its response to bronchodialator drugs,and consult a Chest Physician /Pulmonologist.
You have sputum which is there you may need mucolytic
like Acetyl cysteine
and steam inhalatin.
Inhalers may be required for some more time also treatment with oral steroids may be given with very good result,by your Physician.
Metalic taste may be due to illness as well as side effect of drugs used to treat condition, this should go away once you improve and all drugs are stopped.
You will be fine in few days this year viral infection and its response was a little different as we see every year.
Good Luck to you .