2nd PIP claim

Hi,
My wife applied for PIP in 2017 staying Fibromyalgia as her main condition. She was unsuccessful and we never appealed as we were told the appeal would only be based on the initial claim form. My wife also has hereditary Polycystic Kidney disease that she has taken medication for since she was 25 and this was stated on the initial claim. She has now been diagnosed with Rheumatoid Arthritis,Raynauds disease,and is waiting to find out if she has scleroderma. She also has longstanding Psoriasis aswell as beating breast cancer in 2010.
My query is we want to reapply again and this time with your aids hopefully stand a better chance of being awarded PIP. Do I simply put down all the conditions she currently has been diagnosed with and evidence each one as to how they affect her day to day living or do I concentrate on one condition and how that affects her?
Any advice would be helpful.
Regards
Flash