Hi, i have unenexplained brusing and leg cramps, on my left leg, i havve neuro cardiogenic syncopy and also hypotension, i have recently doubled my dose of potassium too because i have felt weak. also taking a multi vitamin and magnesium. i take alot of other meds too, but i never had black and blues like this all up my leg, i recently just traveled to ny driving from florida almost non stop my friend thinks its from the long travel, i dont know if so why only in one leg. please let me know if you have any advice, just was in the er two weeks ago for the leg cramps and they did a ultrasound on my legs and they said it was all fine.