As with regard to the many symptoms mentioned, they are all interrelated (clearly explained in The Key to Health and Rejuvenation and The Amazing Liver Cleanse). Given the many other questions I am faced with here, I can just summarize the problem you have.
The congested bile ducts of the liver prevent your food from being digested properly. Improperly digested foods are prone to fermentation and putrefaction and end up producing toxic compounds that enter the lymphatic system, congesting the cysterna chyli and thoracic duct (see The Amazing Liver Cleanse for details). This in turn can affect proper blood circulation, elimation of dead cells and metabolic waste from such areas as the head, ears, stomach, intestines, lungs, joints, bones, etc. There is hardly a symptom that is not related to lymphatic congestion, which, in turn, is caused by digestive problems.
Poor digestion also leads to blockages in the colon, forcing waste to backflush into the small intestine, stomach and head area. If toxins enter the auditory ducts, balance becomes disturbed. Your headcahces relate to stomach trouble. Hence, the diaphragm cannot extend into the abdomen far enough, causing breathing difficulties. The same occurs when the liver is enlarged.
Trying to put on more weight without improving digestive functions first, just adds extra waste, thereby increasing weight. This is not wise, though, for it doesn't give you more strength or vitality. It will just require more effort on behalf of the body get rid of it again, usually through an illness.
It is obvious that your next major step should be removing all stones from your liver.
One of your biggest challenges is to change your attitude towards your body. Being afraid of the body doing something wrong paralyses its most basic functions and activities. DNA research clearly shows that a fearful, angry or otherwise negative emotion or thought supresses its codon activity and casues the DNA strands to contract. This can lead to any and every malfunction you can possibly think of. In fact, there is virtually no disorder that doesn't have this phenomenon at its basic cause. I suggest you read through Freedom from Judgment to help you assume and use the real power that is within you and translate it into healing rather than self-destruction. Sacred Santemony may also be useful to furhter this end (see http://ener-chi.com).