I hope this helps!
@Sam_Scope Thank-you that's very helpful. There will be changes as I decided to stick with higher rate mobility and standard DL rather than go through the stress of a Tribunal. I lost out because the assessor said my upper body strength was normal, lies of course. I am seeing my GP soon to ask for a referral to a neurologist although I doubt she'll agree. The reason being I also suffer from an acute health anxiety about hospital tests so her philosophy is if there's no cure or treatment the effects on me would out way any benefit. I can't tell her I need evidence for PIP she won't accept that as a reason to refer me. I don't know how other people seem to have knowledge of their physical defects regarding degenerative conditions but our surgery just accept it's part of the aging process. No wonder the NHS is so stretched when the benefit system is not believing claimants. My GP told me the government had told DWP they had to believe disabled people to save GP's having to write so many letters. I've seen no evidence of this so far..