To be clear, I am not asking for medical advice, YANAD, but I am asking if something is possible. I have never been allergic to anything in my life, I’m 48 now. I’ve noticed over the last 6 months that each and every time I eat anything my nose starts to run and I have to blow my nose. WTF? Is it possible to develop a food allergy at my age?
May not be an allergy. Your upper teeth are rooted into your sinuses and chewing anything may be causing irritation. I don’t know about food allergies in particular coming on late in life, but reactions to some chemicals can start up at any point in life, and people who claim lifelong immunity to poison ivy sometimes end up wishing they’d been more cautious.
I was going to answer that yes, it’s very possible to develop adult-onset allergies. I never had an allergic reaction to anything that I know of, but in my early 50s started getting seasonal allergies. And an almost 60-year-old friend is pretty sure that as of last year (bumper crops of tomatoes) she had developed an allergy, or at least intolerance to, tomatoes.
But “every time you eat anything” doesn’t sound plausible for an allergy. IANAD but I think allergies are fairly specific. I agree with checking with both your doctor and your dentist.
With that said I had an allergist tell me that people can and indeed do develop food allergies late in life and it can be to a degree that can be dangerous. I had thought I was getting an allergy to wheat products (I was wrong) which is how the conversation started.