PK
Welcome to the forum
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My full name is showing, how can I stop it?
PIP is not directly concerned with the underlying conditions, but rather looks at their effects, so we can't really comment on whether anyone with CMT has already gone through the process before, perhaps if any members have they will post.
As to the assessment, have a look at our PIP Claim guide, there is a section towards the back that covers the assessment and the questions you are likely to be asked. See
www.benefitsandwork.co.uk/help-for-claimants/pip Gordon