Beef is notoriously difficult to digest. Tiny bites, chewed to a pulp and cross your fingers. Don't give up on it if it's a favorite. Try again in a week or two. All in all, you're still in better shape than the cow! Prayers going up for you--cow's a lost cause.
I feel for you. I had steak for the first time in 8 weeks and it tasted good, went down, but make me feel nauseous and unwell. I did not vomit, but it wasn't pleasant. I'll wait about a month and try again.