Has anyone with banana allergy also experienced reactions to red pepper and carrots?

My 10 year old son started complaining about itchiness/tingling in mouth with banana's and melons, so he stopped eating them. He now complains that he has the same reaction with all raw peppers and raw carrots. He can eat cooked veggies with no problems though. I haven't found a link between the banana allergy and pepper/carrot allergy.