Distrubed and Confused. </3

I’m not sure what to do… I’m constantly thinking about death, and I don’t know what to do about it all. I’ve tried to figure out why, but I can never find a solution. Websites tell me it’s from anxiety and depression, but I don’t feel depressed. /: I feel fine, but I don’t know. Ever since I moved, death has been constantly on my mind. It’ll just randomly hit me, and the thoughts plague my mind for hours, even all night to the point that I can’t sleep. ): I’m scared.