Dose these dreams mean anything?

awhile ago i started haveing bad dreams that felt so real and i always had that tinyest hint that i was dreaming and id never wake up cause it mostly all real they used to be about people around me dieing and id always be left alone in the house with that thing it was like a ghost or something something that you couldnt see one was of my best friend we were hanging out and a earthquake happened so we hid under the taple then something dragged her out form under it and started ripping her tumy apart then dragged her into a dumpster and i was left alone for 3 days and i had dreams like that constantly for a week and i know bearly ever have any good dreams there all bad lke last night i was at a store and this girl asked me if i wanted to be a wika so i said okaay then i started seeing shadows and things watching me then all this other stuff but it all seems so realy like i can feel it and everything i remember i woke up balling when i had a dream of my friends dieing has anyone ever had this happen before?