If you cannot tolerate the lemon, it is possible that toxins are being released. Also, it could be very acidic for your stomach lining. Take only one tbsp in a full glass of water.
Fresh lemon juice and water is generally taken in the am and pm (it can be done lots more!!) to get rid of toxins in the intestine and mucoid plaque along the intestinal wall. Regardless of what health issue one has, it is important to clean the organs starting with the bowel/colon intestinal wall, then onto the kidneys and then the liver.
I have MCS and mine is getting better since the cleaning, although at times it feels painfully, painfully slow...I am looking forward to being better one day. I know that it will happen.
It is also important to do meditation...mind/body connection works!!