It is not for sure that juicing is the right therapy for you.
It depends on many factors.
What is the climate and season right now where you live?
Juicing can help with bone and muscle problems in warm climate, but may cause more symptoms in cold climate or cold season.
It all depends on climate and the amount of sun you are getting.
Drinking fruit juices during winter or consuming large amount of fruit may cause severe pain in affected bones and muscles.
Sunlight is generally a healing therapy for bones and muscles.
Get as much sunlight as possible.
Wild Fish contains vitamin D and may help.
You may benefit by taking some massage or manual therapy treatment like osteopathy.