J.S.
Yes, honeydew is one of my allergies. It's related to ragweed. You might be interested to know that during ragweed season you should probably stay away from lettuce, eggplant and spinach since they're related to ragweed too, and you might notice your mouth tingling when you eat them.
I have to be careful with foods with seeds to begin with, and foods with pits. They're high on my allergy and sensitivity list if they're easily digestible, and if they're seedy I have to avoid them because of diverticulosis.
If you have nut allergies it's not uncommon to also have melon allergies and seed allergies.