Hello. I'm a 22-year old male with no real medical history. I am not on any medication.
Over the past year or so, I have had problems with something waking me up from sleep occasionally. It happens just when I'm falling asleep, I'll have some kind of thumping or spasm that wakes me up from sleep, usually in the upper chest or neck area and occasionally it'll be my legs. At first I thought it might have been a rapid heartbeat waking me up (because I can feel some kind of jerks around my upper chest area) but if I feel my heartbeat right after I wake up it isn't unusual, so I think it's some sort of muscle spasm, maybe strong hypnic jerks.
This is sporadic and doesn't happen everyday, probably a few times a week. But on days it does happen it may happen more than once.
I actually went to the hospital and had an ECG and chest x-ray, and other than a high resting pulse (100 bpm) they didn't find anything unusual. I notice that if I drink alcohol before bed it doesn't happen, and it's more likely to happen if I nap or if I go to bed unusually early or late.
Any advice?