What's Wrong With Me?

Lately when I am watching TV, on a show someone will say something and a song I've heard before will pop into my head relating to the situation on TV or I'll read something and it will be a lyric to a song and the song will play in my head over and over. Or a song, commercial jingle, or movie line will pop into my head out of nowhere when I'm doing something and it to will play over and over again, and on rare occasions just once. Along with this memories or images of things will just randomly pop into my head. For example, I'll be watching TV or on my computer and an image of me at an amusement park or me fishing will just pop right into my head for no apparent reason or trigger. I can't find anything related to this or what it could be. I don't know if this could be involved but I have spasms and twitches in both eyelids, also, sometimes i get this tingly, crawling sensation on my head. Any answers would be appreciated...