Is it normal to have meaningless reoccurring dreams?

I've kept a dream journal for about a year and a half. I don't have many entries because I don't dream a lot, but I like to go threw it to see if they have any significance. I'll have the usual one off dreams about being stuck on an island and know that it means I'm lonely, or the ones about my teeth being pulled because I'm anxious about something, but then the problem of the reoccurring ones comes in. I have about four reoccurring dreams, and one reoccurring theme for a dream, and no matter how closely I think about them I can't extract any meaning from them.

Dream One involves my brother being eaten by a monster, my Father and sisters missing to a void in space, and my mother ripping off her face to the bone and then twisting her head off.

Dream Two is when I'm walking back to town from our Ferry Terminal and everything is all orangey. Then a giant spider crab comes out of the harbor and squats of the whole town, doing nothing beyond that. Then I go into the woods and find a wooden door in the dirt, try to get in, then wake up.

Dream Three is me spending time in a camp with natives up in the mountains. We ball out for a bit and its like a great time really.

Dream Four involves me being terrified by a number of different things on a broken old Navy boat.

Finally the reoccurring theme for my dreams is cannibalism, particularly me cannibalising my friends. And that's it. I can't find meaning in a single one of these. Anyone else have the same thing?