On the HCG Diet can you take Hydrocortisone pills?

Well, I don't know if you really should or not, but I did and survived, but I was taking 20 mg and still lost 30 pounds. But I have gained back 15 pounds and am still on 15 mg cortisol, so.... I want to try again hence the reason I found this question. Good to know there are others out there with adrenal issues and want to get the weight off!