I have been having sleeping issues. I go to sleep at night perfectly fine but during the day I am tired all the time, coffee doesn't even help anymore, I can sleep all day every day if given the chance, my energy levels are allmost completely depleted. yesterday I swept my back porch and felt like i was going to have a heart attack after a couple of minutes. My heart was racing. About a couple of weeks ago I was passing what appeared to be clots during a bowel movement and that occured a couple more times after that. I also had pain in my lower left back. I went to my doctor and they did an ultrasound and xray and found that I have a kidney stone and arthritis in my back but that doesn't explain the other symptoms. I don't know what else to do or if this is associated with something.