I did the quest where I got the golden claw and the dragon tablets. In the last room of that quest, I read some glyphs on the wall that put a dragon shout in my spellbook. It looked pretty weak and said that all it did was push stuff back and out of my way, but I expected that for the first one. However, there was no tip provided about pushing z to cast it. I didn't think much about it at the time, because I didn't see any good use for it anyway.
Then I did the quest where I killed my first dragon with the help of the Jarl's righthand woman and three or four guards. When it died, it started to explode, and she yelled "everybody, get back!", so I ran back toward the tower. The dragon exploded, and I and everybody else was on fire.
Then the dialogue revealed all the stuff about dragon shouting and being dragon born. It said that I had absorbed the dragon's soul.
However, the character screen clearly says "Dragon Souls: 0". And there was no new shout other than the one I already had, although now I got a tip screen that said to press z to cast it.
Is this how it's supposed to work? The quest chain appears to be intact - I got the thunder sounds and the mission to go find the dwarves to learn more about dragon shouting.
But it worries me that that counter reads "0".
Can anyone put my mind at ease?

