Okay, I felt fine this morning upon waking. Showered, and went to grocery store still feeling fine. (Did not eat breakfast, no reason except I wasn't hungry.) I was in the process of getting groceries gathered up and suddenly got very hot feeling, actually sweating all over, felt faint, and very nauseated. Had to leave basket sitting in middle of store and swollow repeatedly to keep from vomiting in middle of Wal-Mart. Once I got outside in fresh air stomach started feeling better. Bought a sprite and came home without groceries. Shaking and nausea(spelling) are much better. Still feel VERY weak and just don't feel good at all. Could this be from sugar dropping? Haven't ever had any trouble with my blood sugar before, but do remember my grandmother when hers would drop. But I can't remember if it was suddenly like that with no warning at all or if it was gradual. Or if she felt bad beforehand. What about it? Any ideas on what this could be? Really feel weird right now. It's actually pretty scarey. Please give me some idea on what this could be.