This is the second year that something like this has happened. I had one glutening about a month ago, but quickly got over it after discovering the culprit. That was mid-late April. Fast forward to mid-May and like clockwork, my seasonal allergies began about 2 weeks later. Last year my allergies weren't too horrible, because of the messed up Spring we had (I live in Michigan and it hit 90 in March, which really messed the plant life up around here). I had sporadic gluten symptoms, despite eating what had all winter given me no issues. Much like my allergies last year though, they weren't too terrible and went away quickly.
This year, I'm back to eating the same old trusted items in the wake of my glutening in April. My birthday is next week, so I'm being SUPER cautious so I don't have to deal with being sick that day. Like I said, my seasonal allergies flare up in early-mid May, which they did this year, only FAR worse than last year since tree pollen counts are insanely high around here. Much like last year, I'm having gluten symptoms despite eating clean, and this year they're much worse than when it happened last year, which seems to coincide with my seasonal allergies being more intense.
Am I insane for thinking there's a connection between one autoimmune response and my gluten issues? Has anyone else dealt with this?