Crosstraining - Pain

Today is my first crosstraining exercise. I decide to do The Firm's Upper Body DVD. My hip feels weak and loose in the socket. I can't do all the push ups, but the other exercises are achievable for me. After the workout, my arms are shaking a little and are fatigued. I feel great during the day, my muscles in my legs are not sore any more. The pain comes after my orthodontic adjustment. She puts on new "connector" bands and I have to wear my elastics in a triangle pattern. By the time I try and eat dinner, I'm in a lot of pain. This could be bad if I am unable to eat the necessary nutrients. My mouth feels wired shut, I don't think I'll be able run with the triangle elastic in. After dinner, I can feel my arm muscles getting sore. My hip is feeling tight and weak. Weight: 121.5 pounds (I think I need to lay off the tator tots :) Breakfast: 1/2 power bar, 1/2 gatorade, 1 piece of toast, Green tea Snack: apple sauce, grapes, 2 chocolate chip cookies Lunch: 2 soy vege burgers Snack: Chai tea, oatmeal Dinner: Chicken, rice, apple sauce, banana pudding