Why does my arm shake when I sleep?
Periodic limb movement disorder (PLMD) is a condition characterized by twitching, flexing, and jerking movements of the legs and arms during sleep. It’s sometimes referred to as periodic leg movement during sleep (PLMS).
Why do I have tremors in my Arms at night?

Night tremors begin as sleep starts, sudden jolts as a person starts to fade into sleep. The tremors then begin in the first stages of the sleep cycle. Tremors can manifest as spasms, normally in the arms or legs.
When do I feel like my body is vibrating?
Feels like I’m vibrating! I have started feeling like my body was “vibrating” – not spasms, or jerking – like there is a vibrator in my body. Feel it most in the back, but everywhere else too. Mostly happens when I am sleeping or relaxed – it will wake me up, but has happened once when standing. Does not hurt – just very disconcerting.
Why do my arms feel like they are falling asleep?
When one or both arms seem to fall asleep, it can feel as if they are going numb, or as if a person has pins and needles. The medical term for this feeling is paresthesia. A variety of causes may be responsible. Some are benign, while others require treatment. The arms can feel as though they are falling asleep at any time of the day or night.

When do periodic limb movements occur during sleep?
PLMD movements typically occur every 20 to 40 seconds in batches of 30 minutes or more during the night. They are more common in the legs but may occur in the arms as well. The limb movements typically occur during non-rapid eye movement (non-REM) sleep. The most common symptoms of PLMD include the following:
Night tremors begin as sleep starts, sudden jolts as a person starts to fade into sleep. The tremors then begin in the first stages of the sleep cycle. Tremors can manifest as spasms, normally in the arms or legs.
Feels like I’m vibrating! I have started feeling like my body was “vibrating” – not spasms, or jerking – like there is a vibrator in my body. Feel it most in the back, but everywhere else too. Mostly happens when I am sleeping or relaxed – it will wake me up, but has happened once when standing. Does not hurt – just very disconcerting.
Why do I wake up with a vibration in my Heart?
I am wondering if anyone has ever felt the following: Almost every night I fall asleep normally only to suddenly wake up 20-30 minutes later with these feeling of vibration throughout my whole body. MY heart seems slightly irregular and has the feeling like it wants to start racing.
What do you need to know about arm pain at night?
Arm pain at night is a warning signal that you have a problem that requires attention. Warning signs that warrant evaluation include an increase in the frequency or severity of pain, reduced range of motion, numbness and tingling, loss of muscle strength, and muscle atrophy.