I have had piccs in the past that hurt all the way up my arm similar to what you describe. No matter how you look at it, a catheter does not belong in a vein up your arm. I can imagine some have an easier time with them than others. I've had ones that i wouldnt even know they were there and ones that wouldnt let me have a moment of comfort. I only do midlines or peripheral iv's now. No more piccs for me if i have any say over it.