yorick damage bug & maybe gold spent bug?

So i just had a really great hour long game, but after the game while going through stats i have found something weird. When checking damage dealt it says yorick did almost 436000 to champions. 400k of which is true damage. I dont think this effected the game at all but it isn't possible that he did that much damage to champs. Also on a smaller note it says that i and a couple others spent more gold then we earned.