Hi Chip,
Situations like yours makes my blood boil. If you did not care for your husband at home, it would be costing Social Services a pretty penny, sometimes they need reminding of this.
I am a firm believer in the power of the pen. Sadly telephone calls can be forgotten, ignored, and even in some instances, all knowledge of, denied.
Personally I would write to your Social Worker, with a copy to your GP. Outline when and why you require help, and what kind of help you require. Please remember to give them a deadline for a reply, (or your letter could be put at the bottom of the pile) keep a copy of your letter.
If you do not hear back within your given time frame, write to the Director of Social Services, enclosing a copy of your original letter, again give a time frame for a reply, I would also send a copy to your MP.
I'm all in favour of giving folk the opportunity to do the right thing, then if they fail, they only have themselves to blame for the consequences. Remember, he who shouts loudest, often wins. Whilst you are willing to struggle on, they will let you.
I sincerely hope you get the help you so rightly deserve.
Best wishes
Cate