Diagnosis confusion completing PIP Form

Hi I wonder if you can help. I am part way through completing my PIP application for Asthma COPD overlap. I was diagnosed in December 2023. Today I visited nurse for asthma/COPD review and was told that they are now putting my diagnosis as asthma as they have been advised by Respiratory Consultant that if COPD is on my record then this could stop me having steroid treatment, including steroid inhalers? My nurse advised that I definitely have asthma with a possibility of COPD or some other obstructive disease but needs to put asthma on my medical record for steroid purposes. I will be seeing respiratory team in July under investigation as they want to do a full lung function test to determine if I definitely asthma COPD overlap or just asthma. ….. this now leaves me with what I need to do about my PIP application…… I’ve already put Asthma/COPD overlap on the application form as this was my original diagnosis. My symptoms haven’t changed. I’m confused as to what to do on my PIP application.