Quite a few patients have used potato juice for stomach pains of all kinds. Simply make juice of only ONE raw peeled potato [yes you need a juicer] and mix it with some carrot juice for a better taste. Very effective.
Drink this in the morning on an empty stomach. Don’t use it longer than a month and then take a break of a month during which you can replace it by cabbage juice [one glass or more] of the juice and then go back to the potato juice.
It may also help for joint complaints am lymphedema with which i have no personals experience,