To recap for you:
What it boils down to in my years of visits with multiple doctors/specialist is an inflammatory response from overactive mast cells. This is directly from Allergy/ Immunology (A/I) and ENT but applies to my respiratory and GI issues as well) Like they went into high gear when confronted by the virus but they didn’t stop. This was only after doctors treated me as some kind of crazy freak and denied a Covid connection.

My best treatments:
*Cromolyn Sodium liquid/ H2 blockers-Famotodine - (I had a dozen ulcers in stomach and esophagus/ these worked) from Allergy/Immunology (GI rx’d PPIs
* Albuterol (fr. Pulmonary: I have normal PFTs but due to symptoms they diagnosed Covid induced asthma) and Montelukast (first from Pulmonary/ again from A/I but I have multiple drug allergies/sensitivities, Montelukast is one/cant do it regularly but I’ve gone back and forth and know it helps)
*Azithromycin - from ENT; I discussed above low dose/long term. (Short durations of amoxicillin and Amoxi-Clav worked only while on them)

Good luck with your Pulmonary visit. Have you seen Allergy/Immunology?