Hi Deborah
Welcome to the forum.
You might want to have a look at the following FAQ which explains where everything is;
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum If the medical evidence you have is still relevant to your condition then use it. You say that your condition has deteriorated , if you have new more relevant support documents use them.
Remember that only a few ESA descriptors cross over with PIP, if you look in the members guide tab under PIP, 7th link down you will find
UC/ESA and PIP overlap link click on this and you will see which questions overlap. Gordon, one of our moderators produced this a few years ago.
Don't forget to look at the guides, they are very well written and will help you to word how your condition affects you.
If you have any further questions come back to the forum and ask.
Gary