'Hurts too much' is subjective. If you're asking it it hurts too much to work, you'll be effectively stuck in the noose in a full hanging so you're unlikely to back out from pain. If you're asking if it is comfortable, it could potentially be. It is entirely possible to constrict the carotid artery and die painlessly; resources on lostallhope seem to suggest that positioning the noose so it rests higher up the neck, almost at the jaw could help with this.
Overall it's possible for it to be pretty peaceful, but if not being in pain is an absolute must for you I would not recommend hanging.