Hi Healthy girl,
the whole purpose of coffee enemas, which are different from water enemas which would benefit to lay on left side, is to cleanse the liver. for this you need to lay on your right side which is where the liver is and try to hold it for up to 15 minutes. I hold mine for 20 minutes most times. Best to you, and yes, the gurgling sound is your liver releasing bile which is what you want. hope this helps explain the difference between the two types of enemas and their purpose.