Two of the episodes occurred on very hot days and the one while Grouse hunting a warmer fall day. Supposed to drink a lot of water and I was. Problem was my K was probably at its border line low normal. Sweating dropped it a little lower. If there are any Docs in the house here is where I would like them to join in.
I'm thinking drinking a lot of water may have also been a contributing factor in that I diluted out my blood volume and caused the concentration of available K to the cells to be decreased. A cell can only hold so much volume. K needs to be inside the cell to be effective.
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Two of these events gave me a scare. So it was EKGs, Thallium scans and echocardiograms. Docs say don't stop what you are doing.
Also stress test. Last one was a joke in that I could have hopped on the treadmill for 10minutes and stressed myself more. Hardly breathed hard and in fact I didn't. Said to the Doc that's it. His reply, "For your age that's it."
Waste of time, if stress had anything to do with it.
Well, what I experienced last week wasn't that extreme, and it wasn't potassium. I just couldn't work as hard and it was apparent when I started the workout. Muscles were still sore too.
I have had a similar thing happen, as far as an "episode." Thought I was maybe having a heart attack and my Dr. had me do a stress EKG. He never did figure it out, but an old battle-axe nurse I saw about a year later pegged it as a blood sugar crash.
I used to go to the gym first thing in the AM. I'd get out of bed, eat a piece of fruit, and choke down a powerbar before the workout. On the morning of the "episode," I was out of powerbars so didn't have one, just the fruit. Post workout, I felt dizzy, flushed, and so nauseous that I had to sit down with my head in my hands. It passed after about 10 minutes.
My Dr. just ran the tests and told me I was fine. The nurse asked me what I'd eaten, and told me my symptoms were classic for a blood sugar crash, which made sense. Powerbars have complex carbs that stay in your system more than an hour; a piece of fruit has simple sugars that you burn through is a half hour and if you're working hard your blood sugar crashes.
