Thanks for writing to H.C.M. for your query.
I have gone through your query regarding tightness in throat ,difficulty in swallowing. You have also complain of post nasal discharge
which indicates about sinusitis
Considering your all symptoms and co-relating with disease process it appears to be as you are suffering from sinusitis and recurrent tonsillopharyngitis.
For your proper treatment it is necessary to do these basic investigations.-
(a) C.T.scan of paranasal sinuses
(b) Culture and Sensitivity of phlegm.
(c) X-Ray chest - P.A.View.
(d) Blood - CBC, ESR
, blood sugar (F. & P.P.)
(e) Urine- Routine & Microscopic.
After this much thorough examination and clinical co-relation with inferences of investigations one may reach to a corrcet diagnosis and that can be managed accordingly.