Suggest Remedy For Pain In Shins After Total Knee Replacement

Question: Good morning. I had bi lateral total knee replacement in 2012. Essentially my life was given back to me. However, of late, Ive been experiencing, painful shins ...feels like shin splints. I have also had a great deal of pain in my feet and ankles. Im starting physical therapy for my feet and ankles.
My question, is this sense of chronic shin splints common after bilateral TKR? I am relatively active, walk alot, hit the gym up to five days a week, doing machines and circuit trainig. My concern is that I may be causing more harm than good.
I am about 15-20 lbs over weight and continue to work on that.
Other dx: Fibromyalgia 2009
Epstein Barre diagnosed XXXXXXX 2015
Osteo Arthiritis
I eat well ... very little if any, processed foods. Live in AZ as I cannot tolerate the cold from Ohio.
An have a generally very pleasant disposition.
Currently taking: Vyvannse, Diovan HCT, Lexapro, Trazadone, Doxisosin ... use Naproxene only when needed. Typically use Arnica, both oral and topical for minimal pain relief.
Is this condition simply something I have to learn to live with ...or is there something I can do to
reduce the pain so I can return to the gym and get strong>
BTW/
I am 55 yrs old, Had a complete hysterectomy in 2006; Estrogen intolerant.
Good bone density, prior to surgery in 2012 for the knees.
Pleaae advise.

XXXXXXX