This is the WebMD overview of Insomnia.

I get it; I have it; I am able to fall right to sleep; then its 1.5 hours later, 2 hours later , 3, 4 , 5 hours later, I will have to get up - for any reason.

Reasons: - startling awake from some noise inside me; I know I had a scare-mare but have no idea what; choking feeling; world drops out feeling; world shifts like I will be swept from the bed feeling; slamming feeling with a severe headache on waking feeling, many many different problems that wake me; and headaches usually stay with me.

Also, sometimes the whirling feelings , unsteadiness hangs around, either visually or the world upset inside my body feeling; or the Nausea predecessor to the headaches hangs on for hours.

I understand you;

Best Wishes..............