Hi, today I witnessed my elderly father(80 years old) suddenly find it difficult to walk. He could not seem to move his legs . My mother had to help him sit in his wheelchair and put him to bed. His hands were twitching constantly and he was unable to hold anything. He has been unable to chew or swallow his food however he did drink when a cup was held to his lips. My father has experienced bouts of this over the last 3 months,the last one being 9 days ago. My Mother has told me that usually after a few hours my Fathers motor skills and speech become normal. However todays attack was longer than normal. He has suffered with severe ulcers on both his legs over the last 4 years and has been hospitabilised a number of times with bad infections. My Mother has consulted the GP and they have refered my Father to a neurologist however we are still waiting to see the consultant. Can you give us some understanding of what could be wrong with my Father please