I have noticed this off and on for the past week or so. Every now and then, when I get D up from his nap or in the mornings, he is shakey. Mostly I see it in his hands/arms. At first I thought maybe it was low blood sugar, since I first saw it in the morning after an 11+-hour sleep. But I noticed it this afternoon after his nap, when he'd eat just before going down (and he'd eaten really well - pasta with meat sauce and blueberries and cherries). Has anyone else experienced this with their LOs?