Sorry it's been so rough! I had 24 hours of puking around 4 post-op and it was terrible, so my heart goes out to you. I hope your recovery starts snowballing now and a week from today you feel *normal*🤗
My plan counts protein drinks and soups towards liquids 100%. ( And for the record my "output" has been regular and the right color and whatnot, so I've not had reason to second guess it). I didn't love premeir protein's clear, but I could keep down propel (the individual sticks) either in hot water or well-watered down. I also love Lonolife powdered bone broth, it has 10 grams of protein and just settled really well. Lastly, a protein drink (fairlife or premeir), 8 oz of skim Fairlife milk, and then 8 oz of decaf coffee has really been helping me get down protein (43 grams) and fluid (~32 oz). It just seems to settle better than a straight up protein drink. It just takes a couple hours to drink, but I don't mind sipping on it that long 😅
Lastly, I did try mixing some powdered pb or regular pb into a blended shake because my plan okayed that. That can bump up calories 👍 I just need to taste something different/different consistency, so I haven't done it again. There were a few days there everything tastes weird and nasty, but thankfully that has gone for the most part!