What happens to me is this... I'm going along fine and feeling pretty decent. The better I feel, the more I feel like doing. I keep doing, doing, doing, and suddenly I don't feel so decent anymore. This usually leads to a feeling of being unbelievably overwhelmed.. to the point that I'm not feeling so clear about anything anymore. By the end of the week my head is buzzing.
My grounding tip... Go to bed. Get some rest. Forget fun. Forget obligation. Sleep till you get that pressed-down feeling in your bed, and even if life is happening all around you, don't get up till you know you've slept late. Then get up and move slowly. Really slowly. Don't get too far away from a chair or a bed. I did it this weekend. I feel sooo much better. It works.