wont nap!!

it's SO difficult to try and get ethan to nap during the day (yeah - as if trying to get him to sleep thro the nite is a breeze hah :P). he'll sleep for only 1/2 an hr n then he'll be up and ready to go again!! this is definitely way too little sleep for an 8 mth old baby isnt it? with only 2 half hr naps the whole day (that totals only an hr!), how on earth can he grow strong and healthy? i'm wondering if i shd bring him to see a PD or specialist on his sleeping patterns :(

strange thing is, he still seems to have loads of energy - screaming and squirming during his every waking moment... and his appetite's still good so i'm thankful for that!

the only problem is his sleeping patterns... help me!