My wife is having knee pain that radiates down her leg and into the ankle along with a warmth sensation as if she had a heating pad on it. No swelling, redness, but does have pain in the knee, front of leg when walking.Pain also tends to interfere with her sleep at night. These symptoms have been on going for past 7-10 days.She has been diagnosed previously w/Osteoarthritis, Fibromyalgia, degenerative disc disease & Sciatica.Is this a continuation of ongoing conditions or is this something that should be addressed?