I wake up vibrating all over and also deal with frequent (around 30+ times a day) muscle spams all over but mostly focused in my legs. What could all of this mean? I'm only 20 years old. I'm overweight. I do not smoke or drink and I stay away from caffeinated beverages. I have a lot of stress due to school but nothing I can't handle. I do take a sleep aid, the generic of Ambien, Zolpidem 10 mg each night for an episode of insomnia. I also am very Vitamin D deficient but have been working at that by doing a treatment, under supervision, of 50,000 I.U. once a week. I have heart burn and acid reflux but my Zantac soothes that. Any ideas why I would be waking up with whole body vibrations? And I having so many muscle spasms? It worries me, too that I have a stiff neck. I've been receiving therapy for it and its gotten seemingly better since the Vitamin D treatment but there was never an explanation for it. Also, I was diagnosed with Myofascial Pain Disorder during my neck period because I was also having TMJ. I just don't see how any of this is connected but I feel like there is no WAY someone my age can just have that many health problems. Help :/