Today, I decided to start some conditioning. My plan was to do a few windsprints with jogging and sprinting. Before the sprints, I did a jog as a warmup. I had 5lb weights on my legs and I sprinted near the 2nd half of every other lap. Before I started my 5th lap, I got really lightheaded and started feeling sick. Next thing I knew, I let out a cup of water and some oatmeal on the cement. Not too much, it was mostly water. For the past six weeks, I've been doing mostly the stairclimber as means of cardio to compliment my lifting. I got pretty efficient at it, so I wanted to step my game up. My diets been 5 meals/day hitting 1700 cals/day(Michael Thurmond diet - lost 17lbs!). I changed my eating plan today looking to hit closer 2100 cals/day with more protein mixed in. I usually have a cup of oatmeal, a half cup of blackberries, and 3 eggwhites mixed in a bowl. Today, I had 3 hard boiled egg whites, half a cup of oatmeal, and two glasses of water mixed with two scoops of whey. Did I have too much to eat/drink for breakfast? Should I have started more lightly? Any suggestions? I'd really like to incorporate more conditioning in my diet without having to worry about yakking again. I wanna go back to the gym and at least lift for the day, but my buddy's telling me its not a good idea. What do you guys think? CLIFFS: Started jogging. Yakked. WTF do I do to start conditioning without yakking again?