Hi, welcome tot he forum, vibration in muscles can occur due to abnormal nerve trigger, leading to twitching of a small group of muscle supplied by the nerve. It is a looks like a variant of Restless leg syndrome, but cannot be said definitively. The causes for this would be peripheral neuropathies, vitamin and minerals deficiencies, lumbosacral radiculopathy, spinal stenosis, excess caffeine intake, hypoglycemia, and hypothyroidism.
It can also be sleep related known as night starts can become unusually violent, very frequent, or repetitive, and confused for seizures. The phenomenon is restricted to sleep, and always or virtually always in the transition between sleep and wakefulness, and is not associated with other phenomena.
You need not worry; it will not harm your body and will wear off over a time. Maintain good sleep hygiene, be positive. I suggest you to consult a neurologist to rule out the cause and treatment accordingly. As such this would not be a matter of concern. Take care and regards.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.