I have been doing retention coffee enemas for many, many years. My experience has been quite different from yours but then I am a great believer that coffee enemas should only be used for detoxifying the liver.
And to detoxify the liver I believe that preparation for the liver cleanse is very necessary. You digestive track should be cleansed and your bowels (large intestines) need to move much more than “normal”.
Please read my blog titled “My challenge” link below. I hope that this will give you an idea of what is involved.