
It likely has nothing to do with "chunks of plaque" but it sounds like
you may have a neurovascular compromise to your arm and you need medical
attention *before* doing any more weight lifting.  

















-- 
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Gordon Banks  N3JXP      | "Skepticism is the chastity of the intellect, and
geb@cadre.dsl.pitt.edu   |  it is shameful to surrender it too soon." 