I'm glad that you finally reached out, kimberoumayah!
If you are taking theophylline, terbutaline, singular, and prednisone in combination and yet you are continually ill, then those medications are not working -- and your doctors are not helping you.
My best advice is for you to insist that your current immunologist, Dr. Lauter, should immediately contact Dr. Kirk Druey, _kdruey@niaid.nih.gov_, tel. 301-435-8875, send over your complete medical history to him, and make arrangements for you to be examined at the National Institutes of Health in Bethesda, MD, right outside Washington DC, as soon as possible.
During your stay, Dr. Druey will call in on as many NIH specialists as it takes to get to the bottom of your case, and they will come up with a definitive diagnosis and send you home with a recommended course of therapy.
If Dr. Lauter refuses to refer you to NIH for a thorough examination and 2nd opinion, then you should ask him for a copy of your complete medical record and then find yourself some other senior immunologist or internal medicine doctor, either affiliated with Beaumont or with Harper Univ. Hospital, and have him/her take a fresh look at your case and get you referred to NIH ASAP.