
You're averaging about 5 pounds weight loss/week, which is a bit higher than the recommended 1-2 pounds, but you've made some drastic changes, also. If you can maintain this as a lifestyle, you will probably be okay, as the weight loss will likely slow down some.
Do make sure you change up your exercise routine periodically, because if you do the same thing every day, your body will become used to it and it will no longer be a challenge for your muscles.