I also get cramps in tummy with banana and tongue tingling on to burning sensation as the digestion goes on. I get this same feeling to be honest with almost everything. I try to avoid dairy, gluten/wheat/Barley lots of additives n colourings have a oral reaction too. Onions now cause abdominal pains amongst many others. I was diagnosed with Angioedema given antihistamines n a leaflet I’m at my wits end. So miserable n very uncomfortable most of the time with bloating n pain. I also suffer with fibromyalgia & diabetes I feel a mess !

I also have an avo and nut allergy and cross funtioning fruit of avo is banana, kiwi, quava, melon and I think paw paw was also one. That might be enhancing how you feel if you eat those. I've suddenly developed stomach cramps when eating onion