on ways to kill myself.

I don't think I'm particularly depressed (more than usual I mean)... I just can't stop obsessing about it. I've found these sites where it tells you the minimal lethal dose of certain drugs, and I find myself fantasizing about what it would be like to take that amount.

It's kind of scary because I'm thinking about this in a seemingly rational way, just as I would decide what to buy at the grocery store.

Should I be concerned about this? Or do you think this is just a "phase" and I will move out of it eventually?