For a few weeks now my 14 mth old has a morning nap - fine and then an afternoon nap but wakes up really grumpy and cries and or screams or is just really really upset for about 30 mins after the afternoon nap. He's always fine after the morning nap, and It's almost as if he's still tired although he will do this after an hour and a half nap. He will calm down if I pick him up or distract him with baby tv or the laptop but will start up again about 5 mins later. Could he be just still a little tired or not great at waking up? He's not thirsty, hungry and nappy is fine but will still be upset. He always wakes up by himself as well.