3 Months Post-Op Update - gained again

It's three months today and I gained. I am not down 46.6 pounds from pre-op. I'm down 7" for the past month and only 8.6 pounds in a month. I know it's because I have been going to the gym and not eating enough calories. I'm only getting in about 400 calories. I need help with food ideas that are low carb, low fat, high protein that has calories. 

I went to my general doctor today to talk about my anxiety meds. He put me on celexa from sertraline and Valium instead of xanax for panic attacks.

Here's a picture from day of surgery and today- three months post-op.