Earthquake sensation when falling asleep
Ok so for about a few years now this thing will occasionally happen where ill fall half asleep and it will start to feel like an earthquake. It usually lasts around 10 - 20 seconds. It starts out as a light shaking and progressively gets worse until it feels like a terrible extreme earthquake and as I come out of it it gets less bad. This has become more and more frequent over the years like when it first started it happened around 3 times a year now it happens about every other night. Also like right after the shaking stops I wont be able to move for about 5 seconds. Even though nothing physically painful happens to me it is still very scary. Just a couple minutes ago this thing happened at the end of one of the tremors that hasn't happened before. The vein in the right side of my neck started twitching violently it was very scary. Someone please give an explanation.