any time I hear anything about cramps, spasm, tics, tightness, and so on I go to magnesium status first. particularly against the backdrop of strenuous exercise. consistent with your hypokalemic history as well. a serum magnesium result could be very telling. easy to get.
odd sx? no dx? check w/ dietitian
DRI=MINIMUM eg bit.ly/1vgQclQ
99% don't meet these. meds/lifestyle can affect levels
status can be low in ms & other cond'ns
'but my results are normal'. typical panels don't test all
deficits occur in 'normal' range