Calcium supplements from natural sources... like dolomite have been linked to heavy metal poisoning.
So are some algae products like chorella etc.
Most calcium today in other products is manufactured so heavy metals are not likely. But arsenic is common in the environment too... well water, etc.
I forgot if you have symptoms in the hands as well? A poisoning would be in the arms and hands as well as your legs.
You could get a hair analysis done. Some labs are good, and others not.
You might investigate Lyme disease. We have a poster here who
got the newest test just out in 2012.... It gave him an accurate positive, whereas the previous testing was not as clear.
http://neurotalk.psychcentral.com/post1018647-10.html
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Weezie looking at petunias 8.25.2017
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