Is it normal to feel mentally destroyed when writing?

I've been doing major edits on my book at the speed of one chapter a day, telling myself I can't sleep until I get it done. I've been doing this so I can finish my book by the end of next week and have a second go at literary agents. I'm, overall, enjoying getting back to writing after not doing it for so long, and I've never written as much as I have been the last couple weeks. But I feel destroyed, hollow, as if I'm existing just to work, care for my father, and write, which is true. But I've done both more and less with my life and haven't felt like this. I feel like I want ot experience all my emotions at once, probably because I've been experiencing so many emotions with my book. Is this normal? I'm going to keep going with my writing. I need this book to be done. But is it normal?