Hi Unrapid
If you want to report that your condition has deteriorated, you can put in for a 'change of circumstances'. That will automatically trigger a review. Before you do so, look at the PIP criteria and see where you think you should now get more points. I only say this because a deterioration in a claimant's medical condition doesn't necessarily lead to an improved PIP award.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems