A month ago I got a trial set of Phonak Cros II hearing aids but am finding the biggest problem is that they hurt my ears. The sound difference (for my unilateral hearing loss, one very good ear, one useless ear) is maybe a 20% improvement, but what's affecting me the most is how uncomfortable they feel on the backs of my ears, to the point where I sometimes can't last more than a couple of hours. Is this normal as I get used to the hearing aids, or do I just have overly sensitive ears? I really want them to work, but am getting so frustrated with the discomfort, how long does it take until I won't even notice them?