I have been sneezing for the last week, plus my nose is runny. I don't feel unwell like a cold, and have never suffered from hayfever before. I have been outside in the park for an hour everyday exercising. Can you suddenly develop hayfever symptoms?
Hi there, it is not uncommon for hayfever symptoms to develop in adulthood so I wouldn't be too surprised if this is the cause of your symptoms.... Read the full answer 〉