Is it normal to like eating dirt?

Geophagy.

And then do you soil yourself?

It's possible liking to eat dirt indicates some kind of deficiency in your diet.

It is common for pregnant women to eat dirt cuz they lack iron, I'm pretty sure its not different for anyone else.
I've watch a show once were someone ate dirt, it is unhealthy cause of bacteria that can grow in it. A dog could have pissed or shit on the dirt you are eatting.
Not only may it be harmful to your body but it is plain gross.

It hasn't done anything to me yet. I've done it for two years and I'm still good :)

Interesting how google rules the world. I've always heard of this as Pica, the craving of dirt and other non-nutritive items. Eating "dirt" specifically is geophagy, which spellcheck doesn't even think of as a word. But what is "dirt" that term is pretty meaningless.

You may have a deficiency in iron or other important mineral.

do you study geology by any chance? geologist (like me) are famous for this :)

were you starved as a child?

Does your arm shake violently and turn red when you eat dirt?

I'm the same way with dirty diapers. I love to dig into a steaming soiled diaper. Mh mh mh!

Just don't eat the night soil; that shit will kill ya!