Spasms in my arms

been diagnosed with Parkinson’s for three years. I have noticed lately that my left arm seizes up at times and can be extremely painful, It is like a spasm or a clenching, I can detect when it is about to happen but cannot prevent it. It is terribly annoying and I am wondering if it is Parkinson’s related or maybe something more serious. Any advice would be most welcome, Furthermore i have been getting like a burning sensation on the back of my neck and can be most uncomfortable. So I am finding things quite challenging at the moment.

It could be a dystonia from the parkinsons or the medications. I’d suggest talking to your doctor.