Joint pain and body stiffness

Dear All,

First of all thanks to you all for yours guidances!

2ndly here i need another help/suggestions of your about my mother's problem.
To start with my Mother is 56 yrs of age, height 5.2 feet and Wight 75kgs.
From last few years she is having joint pain esp in knees, ankles, hip and feet. Whenever she sits for some long time in a particular position she cant walk for some minutes, as first she needs to relax her joints only then she can walk. The trouble in walking is also because of sole pain as she cant give full weight on her soles.
Because of this problem her body joints become stiff for some time, this gives arise to body ache, restlessness.

Here i wanna share one thing more that she is having pain in her head infact behind the head some nerve/vain started paining.
Though she is a house wife but she works or whole day , he day starts at 6am and ends at 11pm. she had disturbed sleep as she worries a lot about house and about kids future a lot.

Pl help me in this,, here if any further information required that i can share as asked by you pple.

Need your urgent concern on this.

Thanks