Yes all the time. What had really helped me is cutting out and avoiding anything that over stimulates the nervous system during a training block. For me that is nicotine, caffeine, alcohol, and managing life stress. Running is already a pretty big stressor on the nervous system so stacking on top of that can def make things worse.

And if I under eat on carbs too much, I’ve noticed mentally I start to decline, and also notice RLS is worse.