Hi Everbody, I too care for Dad who has Lewy bodies/Parkinsons. He does shake and is very rigid with movement etc. Recently he has fallen twice, being very unsteady and bent double, both times he appeared to be knocked out and was very very rigid. I honestly thought the worse, he was like this for five hours. He had scans, bloods etc nothing showed. Also last time he was really ill with infection he did go very rigid then, the nursing staff and I thought he was fitting. I don't know whether this is a symptom of Parkinsons or Lewy Bodies. The only medication Dad is on is his Parkinson patch. He was given Memantine but this did not help him and in fact had an adverse effect on his condition. X