I have been trying to figure out why I itch in the lower back and lower abdomen. I have been taking Lunesta for years for my insomnia and have never had a problem. I have been itching now going on three years. I have been to doctor's and have not found a reason for the itch. There is no rash, just the horrible itch. It hit me yesterday that in 2014 they came out with the genetic to Lunesta and maybe that is the culprit. Is this a possibility?