hi there, you are suffering from a throat congestion
which is causing your eustatian tube to close up and that is why you are getting this closed up feeling. It could be due to allery to something or due to common cold
or any infective condition. You could try warm saline gargle and taking a decongestent for a few days, if you develope any systemic symptoms like fever
with mucous or purulent discharge then you may need to take a course of antibiotics on the advise of your physician., for now use vix inhalations and decongestent tablets and these should help to relieve the synptoms . You could also take an anti-inflammatory to take care of the pain. Take care.