I've been suffering from period bouts of insomnia for years now, but they've been cyclical. In the last 9 months, the insomnia has become chronic. No problem falling asleep, but wake up after 4-5 hours and can't get back to sleep. I generally wake up anywhere between 3-5am, regardless of when going to sleep. No caffeine use after 10am.
In the past few months, there have been some events before, during, and after sleep that have raised my concern.
I was lying in bed trying to fall asleep. Will hear a fluttering sound in left ear. At the same time, see flashes of yellow light and feel electrical shocks throughout body in sync with fluttering sound. Lasts only a few seconds. No other symptoms. This happens maybe once every 7-10 days.
This is the one that really bothers me. Lying in bed just waking up from nap. Jaw started to move as if chattering. Tremors then hit all at once in all 4 limbs. Heard a sound in left ear (like one of those electrical gadgets from Frankenstein’s lab) as well as a feeling of electrical buzzing in brain. Consciousness was retained throughout. Tried to move and speak, but couldn’t. No idea of exact length of duration, but not very long (maybe 20 seconds in total, if that long). No loss of bowel/bladder control. No frothing or drooling. Emotional state was one of apathy/eerie calm both during and after. Slight retained feeling of tremors in hands for approx 1 hour after, but no visible signs of tremors. No marked increase in fatigue immediately after, but was exhausted all the next day and cognitive ability was markedly reduced as well for several days. This has happened only once.
I've recently had an episode where I was wandering around the house and making repetitive phrases. I have no memory of this event.
In addition, in the last 10 days, I've experienced an intermittent large tremor in my right hand. This has woken me up twice and happened shortly after waking once. During the day, I'll also experience smaller tremors in the same hand.
I've noticed I'll frequently have dreams before falling completely asleep. All dreams in general are very vivid and frequently unpleasant and/or violent, often continuing where another ended or taking place in the same location. Rather like a combination of serial dreaming plus deja vu.
I've seen a neurologist and am scheduled for an EEG and will be scheduled for a sleep study soon. Unfortunately, the neuro wasn't very keen on answering questions so I'm no better informed as to what might be going on than before. CT scan w/o contrast and MRI are clear.
Hoping you could offer some insight. Any breadcrumb would be better than the limbo in which I currently find myself.
Thank you very much in advance.