Lump in throat an upper chest. Be it?

Iam in home quarantine as I returned from another state.i usually have sinus head ache every seasonal change.i take no medication and usually good sleep would suffice.now while in qntne i started having mucos heavily in Ulva and throat.But No fever, cough,cold,sneezing,throat pain.had slight breathing difficulty bcoz somewhere nose is getting blocked bw throat and nose.consulted doc and done covid test and result awaiting.they gave amoxcyulin cetrizine and rantidine and one nasal saline drops. After three dozes wheezing seems to be minimized.i do steam inhalation and gargling too .but after taking steam through mouth iam feeling heavy lump in throat and chest and muscles ache.what could be it???Until rantidine usage i had acidity reaching my chest...Are they related... diddixult in swallowing saliva but food seems ok..Pls reply as I am unable to meet ant ENT owing to current pandemic.