So is the doctor giving you the hormone shots a REAL doctor who does other things/sees other patients as well, or is it a doctor that is only working with the weight loss center?
My mom recently went to a place like this, and I talked her out of it after showing her a lot of the stuff on the internet about it.
Because you asked about the calories, here is my advice.
I would talk to your regular family doctor. A doctor working for a diet center is of course, going to promote their practices. You need to see your regular family doctor about the calories that you are consuming, the hormone shots, the diet pills, etc.
You are basically doing an extreme low cal diet, taking the "upper" pill, even though you have basically gone down to only half a dose, and the hormone shots are not approved by the FDA. The shots are promoted heavily by the scam artist Keven Trudeau as well...and I have even read that they can be made from extracts of pregnant mare urine.
Please speak with your regular physician, and show him/her your eating journal, your exercise, the prescription pills, and the hormone you are taking injections of. Let them take an "unbiased" stance with you, because they are not profiting from the diet center like the doctor giving them to you.