Hi Rozm2004
The DWP always says that if there has been a change in your condition, you should inform them. In reality, they want to know when claimants have improved because then they wouldn't have to pay them. You are already on an enhanced award - so you have nothing to gain by telling them about any additional conditions. Also, you have to think whether those conditions would actually make a difference - because it's not the conditions themselves the DWP focuses on, but how any symptoms impact the specific PIP criteria.
So you can choose to tell them not, and they could just file that information away, or it may well trigger an earlier review - which I suspect you will want to avoid. Lots of people don't inform them until the next review, however, at the end of the day - the choice is yours.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
