when I stood up this morning I immediately fell full force backward and landed back on the bed lying across my husband. He woke and asked if I was ok and I told him I didn T know and what had happened. I was unable to get past a sitting position without immeciately going back down almost like a force was pushing me. This contonued for approximately fifteen minutes and finally he held me up so that I couln t fall back and I felt dizzy and like I was going to throw up but it then very quicly passed and now I am normal again.