<<Disclaimer: Verify this information before applying it to your situation.>> A couple of years ago this all started while I was still unaware I had a gluten problem. Extermely rapid heart rates waking me. I still continue to have very short sleep periods every night due to rapid heart rate that begins approximately 5 hours after I have been sleeping. I would say my heart rate is about 120-140 per minute. That is what wakes me. Now, keep this in mind; I do not wake and then it starts.... it starts and then it wakes me. Once I have a bowel movement it settles down rapidly. It takes about 1 to 2 hours before I can get back to sleep. I need to plan on being in bed 10-12 hours just to make sure I can 7-8 hours of sleep. In the evening I am very relaxed, heart rate is about 75-80 bpm. I have only been GF for about 3 weeks. My bowels are doing ten times better. I was hoping this would go away. This "no sleep" for two years is really wearing me out. Any ideas out there what could be causing this? It is not psychological... it is physiological.