traviata sorry to hear you had issues with the PICC line insertion.... Me too (back when I had Chemo) Apparently I had lovely veins, BUT he couldn't get the line in without the vein closing?! Anyway after being there for over an hour he gave up and said we could try again the following day. Which we did. The second time round, I drank LOTS of water before I got there, then he wrapped my arm in a towel to keep it warm! But the main thing he did was, he didn't give me the local anaesthetic until he had put the first needle into the vein! It did hurt a bit, but not massively! But the line then went in perfectly!
Don't lose heart, I would say it's definitely worth a second try. Although the line drove me insane, or at least the dressing/flushing did. I am glad I had it, as the Chemo was much easier with the line in.
Good luck I hope you get something sorted. Although don't panic if they can't as I'm sure some people on here have had Chemo through a canula and have been fine.