Susan
I have moved your post to it's own topic, please don't post your questions in other member's topics as it leads to the wrong advice being given or taken.
You should treat this new ESA50 as if you are making a new claim. Complete the ESA50 in full based on how his conditions are now and include any relevant evidence as you ca, even if it was submitted last time.
It's very unlikely that those assessing him will refer to any of the documentation from 2014.
You do not need to provide a Fit Note when he already has an award.
If you have further questions then please reply to this post and we will do our best to help.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems