I'm glad you were able to safely pull over and get some sleep. When these fatigue spells hit they are pretty scary.

Just tonight I had one of those fatigue spells hit me. I was at home and doing nothing and knew if I didn't lie down I was going to fall. I ended up sleeping on the couch from 7 - 7:30 p.m. My DD came over to make sure I was okay (DH wasn't home). She is so sweet. Then I got up and finished what I needed to do! Now I'm ready for bed!!