You are almost a month out keep sticking to the meal plan given to you from your doctors. For me I wanted nothing more than to have some food to chew, so when I did I was full befor eating my alotted portion. My guess is you are working on yogurts cottage cheese, and soups. Just make sure to drink lots of fluids and remember about 45 min before and 1 1/2 hours after you eat, that was hard for me I always had tea or water with my meals.
Remember your body is going through changes right now, just because your scale is not moving doesn't mean your not shrinking, My support group all said to measure to see the difference but I just tried on cloths when my scale didn't move, it made me feel better. While you lose fat you gain lean muscle mass even though your scale doesn't move you are gettin thinner.
When I was able to start eating solid foods I found it best to use the tea cup sauser and that would make it easier to see what a portion looked like, I also weighed everything. I now use a little salad plate it is just a little bigger than the sauser and fits a whole meal on it for me. Most foods I can now use a measuring cup on, after using a scale to weigh things for the past year some things are consitant. I still use it to weigh my lunch meats and to spot check my portions to make sure I still measure things right.
You have lost 22 lbs that is doing great, we can't guage our weight loss off of others, we all lose at differnt rates, I hate to say it but men lose weigh quicker and I don't know why, maybe because we gain it quicker, but that too is dabateable.
You should be going in soon for a check up, so if they don't weigh you on the fancy scale that breaks down the fat, muscle and water weight then ask for a weigh in, I am sure your fears will be rested. Also talk with your doctor and keep going to the support group meetings, it is so nice to talk with people who are going through all the same things. Good luck.
Tom