Do I have Cushing’s Syndrome?

Do I need to find a new doctor test for Cushing’s? I was diagnosed around 6-7 years ago as being insulin resistant, and since them, symptoms keep appearing. I have the fatty hump on my upper back, but when asking my doctor, she blamed weight. I ended up looking deeper and found a picture from my smallest weight, (125) and the hump was still present. I have the rounded face, and my cheeks are always red as well as purple stretch marks that appear out of nowhere even when my weight stays slightly consistent. I was also in therapy for my hips around the time of insulin resistance diagnosis. My doctor will not test me, because she says there is nothing wrong with me other than weight. (185 lbs), and i cant lose weight for the life of me, nothing works. My recent lab results showed elevated Alk Phos, total protein, cholesterol, anion gap, white blood count and platelets. As well as extremely low vitamin d. All of which she explained as fine. Please help!