During Astral Projection, does ur body physically vibrate or do u think u vibrate but ur not?

Astral projection is a story you tell yourself while you sleep. The body is capable of fooling itself to a remarkable degree, and a lot of what you feel depends on nutritional deficiencies. For instance, thoughts might run out of control if you don't get enough B vitamins, and the paralysis happens when you have magnesium deficiency.

Study some books about nutrition so you know how to eat right. These books are old, but still the most popular introduction to the subject:
www.amazon.com/Adelle-Davis/e/B001J3RULO
www.adelledavis.org/
cronometer.com/ (I haven't tried the software.)