Hello Aurélie 
. Maybe this field can help you with kidney stones.
https://forum.enlightenedstates.com/t/kidney-and-bladder-specialist-patreon/51188?u=limael
This fields is free you can download it. it improves blood circulation in different ways.
https://forum.enlightenedstates.com/t/restoration-from-the-long-haul/21318?u=limael
This field can help you improve lymph circulation :
https://forum.enlightenedstates.com/t/the-lymphatic-effusion/16305?u=limael