The location of the gnawing pain
you described and the other symptoms eg lack of appetite, nausea
, coldness, sleep disruption, these will all disappear when you start to work on your liver. Also anxiety is a sign of problems in the liver too. You must avoid pharmaceutical drugs especially paracetamol etc which damage your liver. The symptoms will be most prominent when you consume foods high in fat, caffeine - especially filter coffee, and alcohol.