Benefits available

I have just been moved from my normal role at work in to a position earning over less than what I was earning before. My husband is self employed. I receive pip payments but are there any other benefits available to me
For kidney patients and those who care for them.
http://www.kidneypatientguide.org.uk/forum/
http://www.kidneypatientguide.org.uk/forum/viewtopic.php?f=2&t=13421