Not sure if I’m in the right forum or not. The muscles get rigid and it is painful and can last up to a minute. It’s like an entire body stretch/stiffness that is involuntary. Sometimes this happens on its own and at other times when he is touched. It doesn’t happen always but nearly once a day and the duration seems to be getting longer. He has not been diagnosed with Parkinson’s disease but shows symptoms. Anyone have any idea what this is or have experience with it?