I suspect that the strange sensations I'm suffering from at night are all part and parcel of this, but thought I'd ask if anyone else has these symptoms. I wake at night with 'buzzing feelings that start in the thorax and spread down my arms. I also get a buzzing feeling in a band across the bottom of my back which is a weak spot, it intensifies until it becomes painful. I feel certain it's the nervous system as 20 minutes of deep breathing often eleviates the pain. I've also made a connection between the frequency of the pain and my diet; if I eat sugar I'm almost sure to get the pain and bizarre sensations. I'm currently being treated for PA (but not adequately) my doctor has prescribed three monthly injections (no loading doses) and seems to think it's enough as my B12 reading was 257. I've had just one and the beneficial effects wore off after 3 weeks. I'm seeing her end of January and hope to persuade her to change the treatment, I'm going to ask foran MMA test and homocysteine.