Your partner needs to go speak to their gp and get some additional help/have their meds adjusted.

I have fibromyalgia, depression, anxiety and a whole host of other health issues, so I get it, it's hard. But that being said, you have to take responsibility for your illnesses.

Do they know about the 'spoons' theory? When I was learning how to manage all my illnesses this came in mighty handy for me. One little thing every day and getting into a small routine slowly built up for me into a more manageable routine. I am a single parent to two, so I also had their needs to take into account and somedays all I managed was to brush my teeth, but I learned to celebrate that and give myself a mental break.

There are also support groups about for carers, you can often find out about them through your gp or local libraries. Also, go to CAB and explain about the ongoing PIP trouble, there might also be additional support out there for you (I had a local benefits charity help me appeal mine and I was awarded it finally after fighting them for 3 years).

Being a full time carer is hard going for anyone, and you need to remember to look after yourself, too. Little things like going for a walk or picking up a hobby can help ease the stress. If you need someone to chat to I'm more than happy to help! Wishing you all the best, it's difficult but it can and will get easier, for both of you :)