I have only one lung due to previous surgeries for Lung Cancer. I have been in remission since 2003. I have recently gone through Radiation treatment for Squamous cell carcinoma in my neck (completed Apr/May 20016). Since my weight continued to drop, my doctor prescribed Megace to help my appetite (which did improve). However, I have also experienced a lot of bruising and, most important, my breathing is very difficult and causes me to have panic attacks. I take Suboxone, Vistaril, and Lexapro for depression, anxiety and Opiate addiction. My question is this; could the Megace be causing my breathing? Also, my doctor was going to prescribe Oxygen for me, but my insurance wouldn t cover it since my Blood/Ox levels weren t low enough! What can I do to breathe better?