I'm asking because I'm trying to figure out if the stomach upset I have is from horses, or if its from food poisoning from something I ate. Last week one of my facebook friends mentioned that I may have a parasite because I wasn't feeling good... well, three months ago in early June or late May was when one of the horses I use for lessons unexpectedly gave me kisses. Then on June 7th, another person's horse did the same, mostly because I was curious to see if his horse gave kisses. Both farm owners keep their horses healthy with vet, deworming, farrier and dental--as you should... On June 22nd during that 104-degrees day in Pennsylvania, I was out in the heat for four or five hours and I had to leave early because I felt faint. After getting in the air-conditioned car and drinking gatorade I felt better. sometime in early July after eating a big meal at the bar and drinking a glass of their wine about two hours later I felt bad. The next day I just rested and whatever I ate I threw up. I got better. Then the same thing happened a few weeks later. At the lesson barn picnick, where food was outside, I ate a bunch of different kinds of food, everything from cheese, to mac and cheese to roast pork and raman noodle salad. Immediately I drank a mountain-dew-soda followed by a whole bottle of water--skipped supper due to the late lunch, had a medium glass of wine, and threw up. Got better. A few weeks later, ate food and drank at the bar, same thing, felt bad, vomiting, two days go bye--feel better. My son brought home some plant-based veggie-burgers from a food drive that he got from a friend. I made them and thought they tasted quite bad so I threw the rest away. With some of the incidents I had temporary diareah... Two days later I ate at the bar--felt bad, vomited, fatigue, rested a day or so. felt better. I have no fever and no pain at all. Do you think its most likely food poisoning, or could I be getting something from horses? Other people I talked to said many of them are close with their horses as far as letting the horse give kisses and letting horses lick your face like people do with dogs, like in the picture-- and they seem just fine. And I'm sure the lesson barn owner and others would say something if allowing horses to give kisses is dangerous to people's health. I've always been a perfectly healthy person. I haven't been sick in several years. The last time may have been when I got shingles in 2016 or so.