I think after brewing for well over 25 years I have discovered I am allergic to certain levels of hops. Had a very good Mosiac IPA from sarnac last night. It's a 75 IBU beer and I got a coughing fit and sneezing and runny nose from it. I've had a sneezing fit before from smelling hops before adding to the brew. Just not a reaction like this when drinking an IPA. I wonder if it's the Mosaic in particular because that's a new hop for me? I had no problem when drinking the Clementine Pale Ale, I think that was only 25 IBU.