regarding 3 point go to some reputed ortho doctor or consult them immediately if you have not consulted them.
avoid intake of any from of intoxication and take healthy and hygiene home make cook food if possible and go for yoga exercise. You pain in leg would vanish.
be relax and cool in your approach.
when sit on chair maintain your proper posture.
Remove ruby as it is causing harm to your mercury(lord of your fortune house)

God bless you
Rishi vatsyayan