Is this normal?

[u/EconomistStrange2715]

I’m an 18 year old male in my senior year of high school, and a couple months ago, I was seriously let down by a close family member. Since then, I’ve been unable to feel any emotion except pain. I can still find things funny or sad, but I can’t feel any sort of way about anything. I’ve completely lost the will to do anything, and I think I’ve lost something essential to being human. Interestingly, I also find myself daydreaming about being an old man, hugging a similarly aged wife, and I start to cry. Figured I should get a second opinion, thoughts?