Should I go to my MP, re: ESA claim?

Hi I have never posted on here before, but as I write, I find myself desperate, angrey, crying......etc. My CB ESA finished the end of April (after 12 months), the same week we moved in with my partner for additional support for myself and my 5 year old child, due to my illness. I have rasied mast cells in my blood, causing anyphylaxis, hives, angioedema, lethargy, brain fog, etc etc.

on 30th July I went for my Atos medical (thats another story, how rude are they?) I have been phoning DWP past few weeks for a response about my claim. Today DWP tell me last monday my questionnaire went back to Atos for re-review, as I have asked to be put in support group as this is nearly 4 years into this illness, and I feel I fit the criteria. Therefore I rang Atos to see if they could help with a date or timescale that I could expect a dision (As the bills are piling up and my partner already works a 40 hour week). The man from Atos was extreemly unhelpful, he accused me of not attending my medical, which I think set me into hysteria! ooops, then he just kept telling me my case is at the back of the que, will be looked at when it is my turn. Also this will take up to 8-13 weeks!! I explained that is the time frame for a new claim, but as I have already had my 'medical' etc, then it certainly shouldn't take that long. He just kept repeating himself. The outcome is that supposidly sometime TODAY a manager from Atos will phone me at my request. I am not holding my breath!
So I basically wonder if anyone can help me with advise on what my next course of action is.
In debt, geting very depressed and anxious, and cannot cope any longer with all the strain of proving I am ill. I do not have the energy to cope with this x

Many thanks x x x

Thank you Gordon, It's just sooooo frustrating. I will take on your advice x x x