I am having bouts of insomnia especially at night and have to sleep when the daytime comes and or nap in the afternoon sometimes I get a couple or more hours of sleep at night. I have been using a CPAP machine since 2009, I started taking Lantus insulin last october and after a few weeks the dosage was increased from 20 units to 30 units to 35. Recently I have taken a little of 30 and backed off as this medication is suspect in my sleep problems. I am a veteran and my regular doctor recently retired. I am establishing a new one, but no appointment until May. I have a sleep / Nap study scheduled for April 6th, 2018 and I am concerned about the lack of sleep I am getting, dry mouth or weird feeling in my mouth and increased anxiety. This problem has happened recently with my sleep being interrupted more often especially the last 2 weeks. I am taking also Atenolol 25mg, Hctz 25mg, aspirin 81mg, Tamulosin 0.4mg. I try to take a multivitamin and Adult Gummy vitamin D3 and lately a Cinnamon Capsule 1000mg.