Does anyone experience waves of extreme nausea and dizziness during a bout of ibs? I get this feeling that rises from the pit of my stomach and rises right to my head. It passes if I sit down for a few minutes. This happens repeatedly throughtout the day until the symptons subside. I know I'll have a bad day because during the previous night I have terrible indigestion that will wake me out of a sound sleep. It follows this pattern everytime. Anyone else have this problem?