Hi, I am new to this site and I just want to say a huge thank you to everyone that has posted about these jerks that I get most nights when I lie down. I have been through loads and loads of different types of doctors to ask about these and every single one of them looked at me as if I was mad... when I read these posts and found that other people had them too and explained what they were I cannot tell you how reassured I am feeling. I've had all sorts of tests for inner ear problems/balance/vertigo/migraine associated vertigo/menieres disease and have been told on various occasions that any of these conditions could be the reason for them, but they weren't convinced as they really didn't know.