Why Do I Get Dizzy When I Work Out?!

Why Do I Get Dizzy When I Work Out?

I decided to join a gym a month ago, seeing as upon finishing my first year of college, I gained a few pounds. The first time I worked out at this gym, I had some chest pains several hours later in that same evening, which went away with Advil the next morning. I self diagnosed myself as having costochondritis, and haven't experienced it since. My exercise routine is the bike for 10 minutes, followed by the eliptical for 10 minutes, then basically all lower body weight machines. Basically I do this 2-3 times a week at most. When I do cardio on the bike, followed by the eliptical, I usually feel pretty dizzy and as if I can't walk straight without holding onto something. I feel like I'm going to collapse if I don't sit down. Why do I feel this way? It's not as if I'm exerting myself and doing the bike or eliptical for an hour or anything.

1 week ago
I'm 120lbs, so I'm not overweight; I'm just trying to tone up. As far as being out of shape, I work out in some way, shape, or form on a daily basis; either by walking or otherwise. The dizziness also doesn't occur when I'm on the machine, so that little label means nothing...it occurs when I step off of it. I think dehydration may be the problem, because I really don't drink much, especially water. That could be the reason for my weight gain; I mistake my thirst for hunger, so I eat.

Are you drinking enough water, it could be dehydration