Cleric: Hit Points at 1st Level: 12 + Constitution score.
Hit Points per Level Gained: 5
12 + 16 + 5 = 33.
The GM should not have to tell you to make your character more powerful.
(Sorry if I seem rude or abrupt. I actually got thrown off of a game forum for rude explainations. Took me a while to understand, because I was just posting answers to questions. But my method of posting answers is apparently painfully blunt.)