Don't worry , it will all come together, we all expect a miracle after surgery and there is no such thing. It has been 14 months for me now and I am still loosing slowly but steady. What u r feeling is normal and yes it feels like you are gaining, but believe me it will surely change, just keep looking ahead.
I use a powder protein powder daily, I use Cyntho-6, Vanilla.
I use 8 oz 1% milk, a scoop of powder and about 1 cup of crushed ice an put in the blender, it is wonderful, my kids love it also.
Add a banana or some frozen strawberries or whatever you like.
Hope this will help you.