Well ...If all you say is true and you cannot wear safety equipment in your environment, then it sounds like your project is ...well, doomed. BUT, it may not be. You have not proven to yourself that epoxy is the problem yet, so don't give up. If I were you, I'd get any and all epoxy into a separate place on your property where you never need to go, and this includes the boats and anything made with or from epoxy. Then I'd wait a few months and see if your issues go away (they may not even be allergies or some type of sensitization). If, or when, your issues go away ...THEN and only then you are ready to see if epoxy is your issue. Since when your system is responding to other allergens, the sensitivity to allergens in general increases, I would also remove all other allergens from your life for now: fragrances, artificial colors, pesticides on non-organic produce (only eat organic fruits/veggies for awhile), hormones (only eat organic meats or wild fish/game for awhile), and any and all other chemicals that you can find in your daily regimen. Once things are cleared up, then purposely expose yourself to some freshly mixed epoxy, maybe even put a dab on your arm for a minute (and then clean it off by rubbing wood flour on it until all stickiness is gone and follow by washing with a mild detergent and lukewarm water - not hot water - it opens up pores in your skin). IF you get a reaction from epoxy at that time, THEN you can say with confidence that you are sensitized to it. Unfortunately, troubleshooting allergies is a tough row to hoe. I went through the process several years ago and found out that I'm sensitive to certain red dyes and some fragrances ...now I use all hypo-allergenic products and eat mostly organic foods (to avoid pesticides, herbicides etc). No more allergies for me ...even if I do get exposed to the 'bad things' now and then. My doctor said, "When your allergen bucket is nearly full, it doesn't take much to cause it to overflow - keep that bucket empty and you'll be more resilient to all allergies". Heck, you may find that after reducing or eliminating other allergens, that you may no longer be sensitive to epoxy ...assuming you are (good chance you are...). BTW, it takes 2 or 3 months to clear all the allergen gunk out of your system, or at least it did for me...
Brian