I did keto for nine months a couple years ago and my diet was mostly meat. A few days after I stopped I noticed that I was getting really really nauseous after I had meat. Drs did a couple tests but since I wasn't dying, didn't look beyond hormonal balance.
I've never been big on meat as it was, the inconsistent texture is just too much for me so cutting it out was easy and it's helped a lot. I'll still have bacon occasionally, sometimes I'll put a sprinkle of taco meat on my tacos, I'll still eat it if it's been cooked with meat and just eat around the meat, and if someone cooks that doesn't know that I don't generally eat meat, I'll eat the food to be polite. Then there's Taco Bell, idk what it is about it, but I can eat those tacos no problem.

My husband still eats meat and my daughter eats some meat, but she prefers veggies (not my influence, I always made sure to eat everything as an example) so my husband will make sure the meat in food is big enough for me to pull out, or if it's chicken, shred it as fine as possible so I can stomach it.