I want to add to the above that the seizure like shaking starts when I try to stand up.
I go into like a weird seizure where it last only a few seconds or couple minutes (at least tonight) and I am totally aware of what is going on and my eyes stay open. I did not lose consciousness. However after sitting up for a while (which initially makes it worse) I get better. Then falling back asleep I notice my heart is racing extremely fast during this and I get this scared feeling something is not right.
I want to add as a teenager I had problems with panic attacks. This is not a panic attack. It is completely different.
I know it sounds as if I'm contradicting myself but really sitting up makes it better but not before making it worse. (I hope that makes sense)