Are they occurring on one side of the head or your entire head? I started with "hypnic" or "alarm clock" headaches occurring around 3-5 a.m. in my late 50s. Initially, I thought it was a new manifestation of migraine syndrome. Neurologist assessed and gave me this answer. Only on L side of head, ever. They are sometimes managed with extra melatonin in a supplement. That worked about 2 or 3 years. Then the recommendation was a cup of decaf coffee after dinner. The caffeine is limited but seems to help. Lately, due to new rx for statin, I think, they have been much more frequent so that's frustrating. Not sure if it's the statin drug or the fillers used in their manufacturing. I also find they are occurring earlier-- from 1 a.m. and later, to 6 or 630 a.m. They can result in 2-3 hours of lost sleep. It's good I'm retired now. I also have a 4% lidocaine nasal spray which can sometimes interrupt the cycle if I catch it promptly. And sometimes excedrin for migraine will short circuit it (possibly the caffeine?) Until now, no good direct medical/medication available