my son is like that a lot. When he was younger I would throw him in the stroller and go for a walk to chill him out. Now I find that plopping him in front of a video for 30 min post nap was the only thing that helped. he always wakes up super happy in the morning.

oddly enough he is perfectly fine when he wakes up from nap at daycare.

My kids are like that sometimes too. So am I sometimes, and I realize I wake up craving something sweet. Maybe there's a sort of sugar low that develops for some people during afternoon naps?

Usually a sweet snack right away (like a bowl full of berries) calms them down and gives them the sugar kick they need.