I am praying for you. Cancer is horrible. I was in Stage 4 myself and so far just had a miracle for which I am grateful. Pain is something none of us should have to go through with this and I do not have anything bad to say if you do this on your own and it helps you get by. I did not have to take pain med at the time and am lucky, however, there are countless people who are hurting badly and if this helps them, I am all for it.