Take it a bit slower and take care, Simple! There are points of no return when it comes to worsening your health and it would be a pity to lose the writing skill of someone like you.
Frankly speaking, I'm not at all a critic. I only read literary works where I like the general ambience and the characters are drawn in such a way that I can have a glimpse of their inner world. I liked the way you described things.
I had a look at the prologue and the first chapter and they looked quite promising. I'll read the rest when I can manage some time.
You're planning a re-write? Why? It was already pretty good. I was hooked to your description of birth...
Such a mature style of writing isn't seen here often.