Well better late than never that I post this up here. Crystal from Living With Gastroparesis started up a Kicker Starter project to create an in-depth book about gastroparesis. This is a great idea and it looks like there has been a huge amount of interest in such a book. Gastroparesis really does not get the attention it deserves and I have no doubt this book will be of great benefit to someone who is struggling with this disease.
Disclaimer: I am not a medical professional. This site is for informational purposes, use this information at your own risk.