I find it very different running now on a lc diet than before when I ate too many. My muscles behave and feel totally different than before. They are typically very sluggish to start and it feels like it takes a lot more effort to make them work. Before it was effortless and I wasn't even aware of my muscles doing anything. I think the difference is that they are actually burning fat as opposed to excess carbs.

Does anyone else have that weird feeling when working out?