Fainting while exercising

Running too fast and probably not having enough sugar/food in your system. What is your diet like?

"Well, I do declare. I feel all sorts of weak and faint"

I can do 10k's regularly so its not a fitness thing but it did feel like I was sprinting the whole time.

Heat, humidity, hydration, nutrition, tired. Lots of different factors can make the same run much harder some days. Do you wear a HRM? Sometimes it's a good thing to monitor. If you're putting out maximal effort to run the same pace perhaps you should take it down a notch. Running by effort isn't a bad idea. I did yesterday's long run with a goal of keeping my HR around 160 or lower regardless of speed.

i agree with all of the above posters. i've dehydrated before, as a child, numerous times. it's possible you had heat exhaustion...or were severly dehydrated....but please don't let internet strangers diagnose you. go to your primary care doctor and get some tests done. could be a wide variety of things (vitamin deficiencies; thyroid issues; heart stuff). better to get a medical opinion than that of the peanut gallery.

I eat healthy, I am a vegan and I had a banana on wholemeal for breakfast with a bite of a nakd bar before the race started.

I felt like I was running too fast but my dad who I was running with said I was going slow and that I have ran better.

yep, sounds like your blood sugar bottomed out

Its hard to know from the info we have....

It could be low blood pressure, or not eating enough in general, or anemia, or vasovagol syncope, or you were just tired. If you felt like you were sprinting the whole time while only jogging, then something is amiss.

Well I went to the doctors and am getting a heart scan and the usual blood tests. I think I just ran too hard and too fast as I was running at my dads pace.

Just wondered if anyone ever did anything to prevent it or kept going afterwards?

The same questions remain, without identifying the underlying cause, no one can offer advice on how to prevent this from happening again.

Don't worry, your doctor will be able to give you better info than any of us can :flowerforyou:
Hope it all turns out well!:drinker:

i started insanity at the beginning of the month and by week two day 1 i got really dizzy during my workout but kept going. then for 4 days i still felt dizzy/lightheaded/like the room is spinning and i went to my dr. its vertigo. im getting bloodwork done this week to see if maybe i have an electrolye imbalance (i dont consume a lot of sodium) or anything else wrong. I also might not have been eating enough for insanity (was at 1600, i just bumped to 1800)

I'm going to guess low blood sugar. Or dehydration. I fainted a couple months ago from dehydration (although not while running - I was in line at Starbucks) and a couple weeks ago I started getting dizzy during late afternoon spin classes. That was my blood sugar dropping. Now I put a supplement in my water (not necessarily suggesting this, but I always eat a snack before but didn't want to be too full) for intense late afternoon workouts.

Go see a doctor. Don't ask us, we're (for the most part) not educated, trained physicians. Find out if it's just a one time thing or something serious. Next time could happen where you could be seriously (even fatally) injured.

This has happened to me. At the end of a long run this past summer. (About a month ago).

For me it related more to food than water. But, probably both involved. It was a hot & sunny day.

We had an early long run and I slept in. Ran out to meet group without eating anything! Popped a couple of gels as we started and a few as we ran. I use a camelpak for long runs @ 1.5l filled it 2x during the run.

As I drove home I started cramping & shaking. Walked in the house and collapsed! A few gulps of choc milk got me back on my feet and some toast & peanut butter had me felling fine within a half hour.

I will never make this mistake again! Since this I make sure to have food before long runs and I bring at least one granola bar with me as I run.