Is it normal to get anxiety related to specific celebrations / dates

O.K i'm not sure where to start on this, but it occurs when something like a birth happens i think that baby is gonna need a soul from somewhere, or at Christmas i start thinking negativly about what would happen if someone hurt themselves. This happens to me on most major holidays i always get an anxiety about something (even Haloween i fear that I will be given drugs in a club and overdose like River Pheonix) I even work on +12 -12 hours from Grenwich Mean Time so the Anxiety i suffer can last up to 48 hours. Please Help.