I had a great workout this morning. Worked my abs and back, then did 20 minutes on the bike and 10 on the elliptical. I pedaled faster and ran faster than I've been doing. Got my heart-rate up a little too high. I almost blacked out. Felt dizzy on the drive home, stumbled into the house and collapsed on the floor. Still feeling a little dizzy now, half an hour after finishing my workout. I'm drinking ice water, which is helping.
This has happened before, but not in a long time. It could have been really bad. I'm glad I made it home. And glad I had a terrific workout. Haha.