Welcome Lisa. Glad to have you. The first thing - Follow your doctors orders. Since you have a medical condition, that is the most impotant thing to keep in mind.
The primary difference between wave 1 and 2 is the addition of fruit, so you mention you should have very little. Then add very little fruit. No more than your doctor says you should have. You can eat chicken and fish just fine on Sonoma so don't worry about the limitation on red meat. I eat the stuff maybe once every 3 months because i really don't care for it.
Recent studies have shown that 60-90 minutes of exercise is recommended to sutain weight loss, BUT don't get scared because you don't have to start there. What you are doing is fine, but do keep in mind the need for resistence/strength training along with some more cardio.
http://www.health.gov/dietaryguideli...ckgrounder.htm