My sister has been in and out of the hospital for the past two months and they haven't diagnosed her yet. She loses her balance, has ringing in her ears, lesions on her arms and legs, low blood count, low blood sugar, anemic, slurred speech, drop leg and shaking and tingling hands. What is wrong with her? She took an Aids test which was negative. They ruled out cardiac problems. She also had lost an extreme amount of weight, even though she had gastric bypass surgery 5 years ago she down to a size 0 and she continues to lose weight. Please Help!