Brenda,
I am so sorry. I know the last two chemo tx's mom had were so hard on her. There was only one nurse who seemed to be able to help her. Her veins in her arms were ballooning up as you had described, finally they went for the wrist and it worked. Have they tried that area for you?
Good idea to check out a site for drug users, surely they would know. Would never have thought that one.
God bless you. I have tears in my eyes thinking about the pain and discomfort you surely must be in. You're in my prayers.
Donna