See below: Sounds like arthritis in your knees---you may want to see your doctor.
Answered 8/22/2013
4.9k views
Maybe: Lack of calcium could conceivably cause your symptoms, but for that to be your only manifestation would be unusual. You may have pinched nerves in your lumbar spine causing your pain, or you may have strained your legs without knowing it. I would suggest evaluation with a physician if symptoms persist.
Answered 8/19/2013
4.9k views
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