Big, but gentle, hugs to Annsixty, you have much to put up with and being the principal carer must just finish it off - you need someone to care for YOU right now. Pain saps your energy whatever, doesn't it and I can think of no helpful quick fix (apart from cake) but seriously, sending you what support the Internet can send.
Nice to hear tizliz is in the £££££ - as my Scottish granny used to intone "Don't spend it all in the one shop!" That usually accompanied the sixpence she would give me. Oh do we all remember the sweetie shop when you would put your pennies on the high glass counter and ask what you could have for sixpence? Usually quite a lot, penny chews, flying saucers, sherbet dabs (she's off!)
It is stil cold and grey down here and I am drinking coffee and trying to think of good reasons for not being more proactive. Answers on a postcard, but second class stamp will do!