Hello, Was exercising yesterday at high intensity, then went to lay down to do the weights portion and experience dizziness as soon as I layed down. I sat up slowly, and I slowed down my pace and concentrated on breathing. Felt better but still feel lightheaded today. I'm 42 years-old so I was concerned since I still feel this way. No headaches or hard breathing or anything like that. Just some light pressure behind the eyes and slight dizziness which is uncomfortable for me. I thought to check my blood pressure (at the local Wal-Mart) and it read 141/70. My blood pressure has always been normal. Just checked it a couple of months ago, too, and it was fine. Any advice?