I did reply to your post before, however I removed it. I'm very new here so I felt others were much more qualified to give you an answer.
I completely agree with what I see above

. It will take some time, but hang in there. I'm only a couple months out of chemotherapy and radiation. I could say I'm still affected by them, but not a 1/10th as much as the first couple of weeks during/that followed.
In my personal experience morphine isn't a very effective drug. Maybe you could talk to you doctors about that as well. Oxycodone was much more effective for me. I was able to eat full meals with little pain during/after radiation. but I'm no doc. For you it could be out the question.