How to tell my friend, I’m not depressed?

“My friend is absolutely convinced we are alike. (From the same style of clothes to shows, games and movies) He suffers from depression and believes I do too.”

That seems very weird… How do you go from having movies, clothes, other basic things in common to believing you have the same mental health issues?
Maybe say something that you don’t have in common and say “well since it’s true for me it must be true to you” and see what he thinks if it isn’t true for him. If he keeps denying it well then you’ve proved your point.

I’ve just been thinking about this a little bit and I wonder if by him worrying about you hurting yourself and whatnot, if that’s his way of saying he’s considering hurting himself. Maybe he’s trying to get you to understand without directly saying it. Because if you guys are the “exact same” in his mind, if he is feeling suicidal, so would you.

If you can find a book that describes your personality type, you could direct him to it. Or you could talk about the difference, explain how you do and don’t experience sadness, contrast your experiences, etc.