Rosemary, I had a pic line in the hospital this past summer. Actually, I had 2 since I was released and then had to go back through the emergency room. Having it put in does not hurt at all; however it is put in on a completely sterile field and with an ultrasound to guide the technician through one of your largest veins midarm. Afterwards, you can only have your blood pressure taken in the opposite arm of it, and they wouldn't let me shower with it; only bed baths.
I had a nasogastric tube put in, too, and that hurts and is the worst of anything. (Especially if you have a deviated septum, and I have 2 but didn't know it.)