Yeah, absolutely not. No one can have health issues and be happy with the life they're living. I have one of the most complicated health condition, and sometimes no matter how hopeful it is, I tend to end up sad, depressed and pained.
Like you, I'm also grateful even with all the situation, I was given an opportunity that the rest of my family never had. So I'm always grateful, but I wish my incurable condition can just go into remission
RE: Are you happy with your life?