Ah, the spasm thing was what my home health nurse told me can happen, but usually to seniors. (what I was trying to describe up above).
I notice I get cold, but have never had a spasm and I have repeatedly used right out of the fridge... I generally will stick it under my leg or wrap in my hands (but thats just to get the flow going) to help warm it up faster while I am infusing. I get cold, but I mainly only feel it at the entrance site, especially if the tubing is touching the skin beforehand.
On a side note, does anyone else ever have a whole side of the body like, go limp/numb? Almost like instantly going to sleep and you cant use your muscles? (this is pretty typical for me when on ivs... happens randomonly, when I push saline through, when I start the ivs... my nurse said she's heard of it happening... im not sure if its hitting a nerve or what (but I have a port now)... it goes away instantly, but it hits me very fast).