Hi ,Just thought I would ask if anyone is aware of weakness in the legs almost to being exhausted,being a symptom of this disease.My husband has been weak in general but it was the first time he had to sit down on a bench during a short walk.We didn't get much sense from the mental care clinic ,only to see our GP.He is currently on Mementine and was told it's not that ,I don't want to assume everything is related I Just worry when I don't know what to expect .He is almost midway into his illness.