I worked out at Shapes today for the first time. I only did 15 mins stationary bike, 5 mins elliptical, and 5 mins on another cardio machine like a "skiing" motion, no clue what its called. Anyway, I felt great after I was done until about 15 mins or so after leaving while I was driving, I suddenly felt really dizzy & sick to my stomach. I had to pull over & blast my a/c on my face for a few mins till it passed & I was able to drive again. It was scary, I thought I was gonna wreck my car cuz even my vision got blurry when I got dizzy. It came on so fast, no warning at all. What would cause this? My heartrate never got above 140 according to the machines??

Sounds like your blood sugar bottomed out. I get dizzy, shaky, light-headed, sweaty, and just all-around YUCKY when my blood sugar takes a dive, and it can happen soon after a workout.

Are you diabetic by any chance?

WHat had you eaten? Could you just have had no fuel in the tank? The thing is with a lapband it doesnt make your body work any differently. Your body still has the same energy needs, the band just helps you manage hunger.

A small snack before or just after your workout might make a difference.

I am diabetic, my sugars are usually super high like 250-300 even on meds. (glyburide, no insulin) Maybe thats what it was, I have never felt that way before. I am not banded yet, will be on the 11th. All I had before I went was a protein shake. Tomorrow I will eat a lean pocket or something & see if that helps. It was so strange to go from feeling so great to so sick in just a few mins.

Could also be dehydration. Make sure you have plenty of fluids before, during and after exercise.

If it happens again, be sure to check your blood sugar to see if you're low. I'm betting that's what it was. When it happens to me it's comes on very fast, so I usually suck on a couple of pieces of hard candy (just enough to get my sugar level coming back up) and then try to find some protein to eat in a hurry. That keeps it from crashing again. String cheese is great for this, or peanut butter, but I find that there is too much sugar in peanut butter, and not enough protein to keep my sugar level stable. Cottage cheese is another good one for this.

I have to have "fuel" before a workout - otherwise I crash FAST. I typically hit the gym about 40mins after breakfast - of which I make sure it's not a "protein shake"...For me that's not what works in getting in some hard cardio - I have to have real food. My Doc suggests to keep raw almonds or ostrich jerky (haven't tried that one yet) with me at all times - Good to pop in right afterwards if I'm STARVED, ... Usually ties me over till lunch.

It's great your getting a jump start on exercising before the Band - !!

could be your blood pressure too...i lost 10 lbs on preop diet and i've lost 15 more since surgery...i used to have high blood pressure and with just 25 lbs my blood pressure got soooo low being on my meds...i got sick to my stomach, dizzy, headache, nauseated...so now i'm off my BP meds...YAY ME!...anyway that could also be an issue...could be too high, or too low