My sweet, beautiful, lively mother has forgotten how to walk. This is the second time in a month that Mom is on antibiotics. If something is ailing her, we don’t know what it is. Perhaps there’s a connection between that and her sudden inability to walk. This is a woman who last year danced like a young ballerina for the admissions panel at her care facility; who astounded us five years ago when she and my dad spontaneously started cutting a rug at my son’s wedding; and who,