An odd array of symptoms. . .any advice?

It seems you need to go and have a sleep study done. It could be you need a cpap machine at night. My hubby had the same symptoms and come to find out when he slept he would stop breathing for a couple of seconds and this was effecting his driving and he could fall asleep just sitting there talking to me on the couch. Contact your doctor and explain this to him and get the sleep study done because it can tell you a lot about your sleeping.