Flesh looking lump in the throat besides uvula needs to be examined it could be because of infected tonsils in which there could be impending abscess
You need to have an ENT consultation and get examined .
And also you need to have antibiotic broad spectrum with proper anaerobic organism
Also you need to have anti inflammatory medications .
take anti reflux medications
For reflux--- Antacid
Syp. antacid gel 2 tsf two times a day half an hour before mealsmultivitamin
Keep head end of bed elevated.
Avoid alcohol, Smoking
Do brisk walking daily
Go for walk after dinner
Avoid spicy food
Avoid late night coffee
For sinus problems you need to get done CT scan