Hi to PjB and Joanie,
I am a member of my local pd group and they provide various therapies for members.
There are various therapies and I choose the Alexander Technique after reading about it and also google!!Whilst googling I came across the NHS and ALexander Technique and they recommended it for people with Parkinsons. The group funds 6 sessions and as it has helped me I am carrying on with them for more sessions.
I am sure PjB they would help your neck etc,and Joanie enjoy googling!!You can also buy books from Amazon,i got an excellent one called The Alexander Technique in a nutshell it cost less than £3 including delivery charges.
Hoping this information helps.Cheers Anne