Hi Leslie!! I say listen to your body. It has taken me awhile to really live up to believing......"listen to your body". I sometimes get mentally exhausted from work, and I've learned to distinguish that by doing at least a few minutes of activity to get me through that exhaustion and going into a real workout. However, there are times when my body is just plain physically exhausted. When that happens, definitely rest is needed. In the past if I've done activity when I was physically exhausted, I can't and don't workout to my potential, hence my form and abilities are very sluggish, and I end up hurting myself (anywhere from pulling something, falling off my step and hurting my ankle.....which did not allow me to do step for almost six weeks, or messing up my back because of poor form......I have back problems). Anyhow, I guess I'm getting to the point of I learned the hard way because I'm very stubborn!! Hope you listen to what your body says, and definitely get plenty of rest!!! A friend of mine pointed out to me the other day when I told him I was back to working out........he told me that to make sure I get plenty of rest to recuperate. He told me that many football players get a bad rap and are considered lazy because they sleep alot from their intense training. I don't think that will be my case, since I'm hoping for more energy and less headaches in the long run!! lol.
Kim