It's wonderful to read your post, but it's also alarming. Apart from the battle, everyone has so many worries. I'm sorry to hear your mother isn't feeling well, but I hope she can get the help she requires at the hospital.
Surgery is a scary prospect for you, but on the bright side, it's a good thing that could happen. There are some things that must be postponed, and this may be one of them; you simply cannot live with stomach pain. I'm hoping you'll be able to go through it successfully and receive the attention you require. I hope I could go there once you've been released from the hospital to assist you.
It's good to see you've maintained your equilibrium and are still going strong.