Thank you for the replies! I usually eat something small about an hour prior to a workout and then something else immediately after.
Yesterday after work, I went to the gym and increased the weights, but did fewer reps. Boy, WHAT A DIFFERENCE! I think that's just what I needed. I had so much energy when I got home that my husband thought I was on drugs! I love that high after a good workout.
As far as the cardio goes, I like to keep it pretty intense. I don't know what others may think intense is, but on the treadmill, I'll do about 7.0 mph at a 1.5 incline for 30 minutes. The elliptical varies, but still intense enough to be well over the 80% heartrate for my age...I'll do that for another 30 minutes. I guess I'll cut back to 45 minutes total and see how things go.
Thanks again for your advice!