20 days ago you had major surgery on your stomach. Your outsides have healed nicely, but your insides have a long way to go. Just remember that your stomach was stretched, then wrapped around your esophagus and stitched there. You'll have lots of strange feelings and pains as you heal and your upper GI tract adjusts to the changes that were made.
I'm glad to hear that things are going better. I think you're wise to go back on the PPIs until your healing is further along.
Glad to hear you've been cleared to try lots of different foods. Just remember to stick with foods that can be chewed to a liquid. Take small bites and chew, chew, chew!