I found a site called ‘benefits and work’ very helpful; Google it. Gives very detailed advice. OH went from DLA to PIP on first application after I used this site and with no appeals needed. Obviously you need to be honest but after almost 16 years of Parkinsons that was easy.
The first form is done over the phone, as far as I can remember, and then the more detailed one follows and then there is a deadline for returning that form.You include detail of your neurologist, Parkinsons nurse and |GP and they will ask for their input. The PWP also has space to add how it affects them and one of our daughters also added her thoughts,(she is a mental health social worker).
Bottom line is… you are the best person to say it how it is on a daily basis.And, say it as it is at it’s worst.
Forget Age UK, CAB and even others mentioned in previous posts. Please check out the site that I mentioned. It’s very good. When I contacted my local Parkinsons support worker, showed them the form after the full form had been filled in, they had nothing to add and only praise for the content which was all down to honesty and the help form that site.