There is an online support group associated with that charity (pmrgca.org.uk) that is very good and very active. You can join by going to healthunlocked.com and signing up for the pmrgca community.

This group has been active for a long time. There is a nice search function for the website so you can search through maybe 20 years of posts. Also, when you post a question, the website provides links to related posts.

There are members from all over the world. People in the UK frequently post questions or announcements about local support groups.