Why do I cramp up in my knees, hands,and ankles? and what causes me to have terrible pains in backwhy do I cramp up in my knees and hands for? and what causes me to have deep pain in my shoulders and upper and lower back?
If you are middle aged, you may have arthritis and muscle strain. If you are younger, you may be lifting something heavy, or using muscles you are not used to using. I feel these pains if I have to be on my feet all day.
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