I know this is not a new effect, but I feel so out of control wit...

I know this is not a new effect, but I feel so out of control with hunger. I have never had a weight problem but I can not stop eating. I was on a regimen of high dose 60mg tapering over 6mths and gained 20 pounds due to radiation pneumonitis. Unfortunately, I now have a rare pneumonia from lung injury (radiation) and am back on 40mg for at least 6mths with gradual tapering. My question....am I going to gain another 20 lbs? This cant be all water because I am really eating and feel so bloated. Not to mention the other side effects mentioned in other posts. Also, the pain after coming off in my muscles was very intense so it must be very common. I feel 80 and I am 48.