I keep having dreams about the end of the world? does this mean something?

ive had dreams about the end of the world for three days in a row now. and ive had them before but not in a row. its always about people dying, less people around, fire everywhere and in the end it's always me and my parents and my dog gathering around waiting to die? it really scares me and im scared it actually means something? its not that i believe in 2012 but i AM really scared about the end of the world now because of all the fires, earthquakes, tsunamis, tornardoes all happening at the same time.and everytime i travel somewhere i feel like theres going to be a death.. can someone please help me, i hate this and i want to get all this stuff out of my head because im frightened about it everywhere i go now. please help me..