As you posted 3 months ago, I sure hope by now you have seen the allergist and have your EpiPens (or generic equivalent). I don’t tolerate diphenhydramine (Benadryl) well either and save that for life-threatening situations, but cetirizine (Zyrtec) works on a daily basis.

I had to describe my reaction to oranges to my doctor before he believed me that I was allergic to citrus fruits, citrus anything! He rolled his eyes st me about prescribing an epi pen, but did so because I told him I would feel better about it. I still struggle to be sent to the allergy clinic. Try to find a doctor with a low visit cost. Otherwise you're left with calling emergency services to get the epi back. I have found eating plain rice, plain piece of bread, or unsalted crackers help, and drinking something ice cold.