Hi Karen
I am sorry that your condition has deteriorated. The most important thing is that you keep yourself safe. Is your advisor at the Shaw Trust able to make contact with the JobCentre on your behalf? If they are not, I don't know whether you are able to get an updated letter from your GP on your condition so you can send this in. I can understand why you swore while speaking to the advisor - but they took it you were swearing at them - and you don't want that to happen again. ESA/UC do have a backlog of cases at the moment and they are making new cases a priority, so that may explain why you are yet to have an assessment.
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems