dduff

probably not a physical issue (like a stricture) since you're not having a problem digesting.
I know for the first five months or so, I was never hungry and had pretty much zero interest in food. Eating became a chore. Could it be something like that? I actually liked being that way and wished it would have gone on longer since it was so easy to lose weight when I really didn't like food and had no interest in eating.
however, if you're concerned, contact your clinic - esp if you think there's something going on other than loss of interest in food (which isn't uncommon when you're early out from surgery)

Just throwing some thoughts out there. First thought was an undiagnosed stricture. Or it could be a psychological block especially as you said you think you will gag when you eat so you do. Our brain is a very powerful organ. Does nothing sound or taste appetising because you can’t eat foods you used to enjoy eating & so don’t want to eat the healthier food options (low fat, low salt, low sugar, low carb) you’re encouraged to be eating now?
Honestly, I thought the shakes were the most disgusting thing I’ve every had to consume & they certainly further turned me off eating. I had them on,y because I knew I had too but bleah! I was soooo happy to stop drinking them as soon as I hit purée.
What does your surgeon say? Do you still see or have access to a therapist?