I had quite a large patch of hair at the back of my hair fall out. I was pissed too because I had no idea the radiation field was that large(halfway up the back of my head). They said it could be permanent, or when it did come in would take approx. 8 months to grow back. The reality: It began to grow back 2 months post TX, and there is now 3" of growth. Are you taking robitussin for the mucus?? I had problems sleeping so I took ativan at night. I also slept with my head elavated to alleviate acid reflux and the gagging mucus. Oscar, things WILL get better. It's hard to see it right now, but this too shall pass. Stay hydrated and best of luck to you.