I hated the mushy stage, most of the foods were just disgusting (or I couldn't get past the thought of how disgusting something like pureed chicken sounded). I had 1 bite of mashed potatoes & my stomach hurt for what seemed liked hours, egg salad made me nauseous. Other than pureed peaches & cantaloupe I basically stayed on the liquid diet for another 10 days.
The closer you get to your goal the harder it is going to be, thats just the way it is. Its easier to lose when you are 100+lbs overweight .... not so much when you are 10 lbs over. Its going to be a daily fight from here on out (and even more so once you hit your goal to keep your weight there). Don't let yourself get disouraged, hang in there & stick with the plan.
For me the gas pain in my left shoulder was worse than any of the stomach or incision related pain. I had a real hard time shaking the gas pain & even when it seemed to go away it would resurface in a day or 2. I fought with that for the better part of 2 weeks. The only other issue I have found is that even now I can't lay on my left side as it hurts pretty bad when I do.
I'm 18 days out & have the same problem. I mix whey shakes with fat free milk & can only tolerate a very small drink at a time. I've just been forcing myself to take small sips throughout the day, it eventually adds up. I'm also to the point where I can have pureed food but none of it other than cottage cheese or yogurt goes down very well.