Welcome to the board, thank you for joining us.
Congratulations on joining the Loser's Bench, sorry to hear you of your trouble.
Did you discuss this with your surgeon? Is just about everything coming back up, even liquids? Is the

getting worse?
The first thing that has to be checked if you are

just about everything is stricture. The opening to your pouch tries to close (which is the natural process of healing) and gets too narrow for food and even liquids to pass through.
So, the very first thing you must do is to call your surgeon and be checked, have endoscopy scheduled.
The Golden Rule whenever something doesn't feel right, is to call your surgeon. Remember, though lots of people have had the same type of surgery, the finer points differ with each surgeon, so you need to get your final answer from your surgeon, no matter what we say here for reference.
(((((((HUGS))))))) May your journey go well.