That is TERRIFIC that you had a good ride yesterday!!!!!!!!!!! So perhaps the last round of changes did do the trick, but now you just need some time on the bike. Yes, moving your hands around the bars a lot is very important, as you know that is one of the advantages of drop bars. As is trying to keep your body RELAXED on the bike. Gripping the bars with all your might in a rigid postion will make anybody's hands ache, no matter how good the fit. But, 36 cm is quite narrow. To know the correct size bar, you should ask your husband measure your shoulder distance (didn't the fitter do this???). But if the bars are too narrow, it shouldn't bother your hands, but your upper back since your shoulder blades end up compressed, and sometimes in can effect your breathing since your chest also can be compressed. On the other hand, narrow bars are more aero so if you are comfortable with the width I wouldn't worry about it. New bars aren't too expensive, and its not hard to change the bars out yourself. Again though, I think the idea of making gradual small changes is best, and unless something really hurts, wait a couple hundred miles before doing anything else. For now, just ENJOY HER!!!!!!!!!!!!!