First, my mind was pooled with nostalgic thoughts, just looking at the cover photo for this post, it was a subtle lead to the content of this post.
Going through the post itself, I was drowned in even deeper thoughts.
Truth is its absolutely normal to feel blue and ask questions we can't always get all the answers to but, we've gotta shake it off at some point.

Sorry about your daughter's health. I hope she gets better fast.