Lie on your left side and don’t try 3 cups just stay with one or two cups until you are comfortable. Then increase ii to 2 retention enemas back to back of 2 cups with a 10/15 minute retention.
Your reaction is not common but not unheard of. Usually it is due either to an allergic reaction to coffee or to too rapid detoxification. Do you have an reaction when you drink say 1 or 2 cups of coffee? If not I would guess that you are detoxifying too rapidly. You could go on a colon cleanse prior to the coffee enemas.
Please read my blog title “My challenge” link below.