I am a 27 yr old white female that is 5 6 and weigh 270 lbs. over a year ago i started to experience severe vertigo ,off balance, numbness in toes and feet,and migraines! I have seen emt s,cardiologist s,neurologist s,chiropractor s,etc. i have had mri s,ct scans, blood work,ekg s,and still haven t found the problem! what is wrong? i cant live like this!