I am chronically congested in my nose/throat since many years, but since mostly avoiding going out of the house because of COVID-19, I noticed that I get congested particularly after occasionally taking walks in Arboretum or Karura Forest. In fact it gets so bad that I often can’t breathe through the nose at all at night. I have had an inhalant allergy test done at Lancet laboratories a few weeks ago but nothing was found, though I’m not sure what allergens were exactly included in that test, and whether it covers e.g. tree pollens which are prevalent in the mentioned places. I’d be happy to send you the test result before coming for the appointment.