Dizzy spells
Sounds like low blood pressure. Sometimes when you stand up, your blood pressure can drop suddenly. It's called orthostatic hypotension.
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Mine actually turned out to be a number of issues that are more neurological then cardiac.
First 5K 9/27/20 46:32 - 11 weeks post op (PR 28:55 8/15/11)
First 10K 7/04/2011 1:03 First 15K 9/18/2011 1:37
First Half Marathon 10/02/2011 2:27:44 (PR 2:24:35)
First Half Ironman 9/30/12 7:32:04

It is called postural hypotension... google it...
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