A careful nasal examination, Allergen-specific testing includes Skin testing, Serum tests for allergy, Allergen challenge and as well as Evaluation for concurrent conditions like Sinusitis and
Asthma is necessary and it directs further steps
for management.
Also you are on various medications, some of these are known to reduce the blood potassium levels (like thiazides) and can cause weakness known as hypokalemic periodic paralysis.