Hi lynn
I would not worry about having to rush to report a new health condition. The DWP are mainly interested in permanent improvements in your health which would reduce your entitlement. The DWP only issues penalties where the improvement in the health condition has led to a reduction in a payment. I have never known anyone get a civil penalty for a new or worse health condition in addition to the existing one.
If you like you can give us some more details and I will advise further.
David
Nothing on this board constitutes legal advice - always consult a professional about specific problems