For the last four years I have been struggling with extreme fatigue and pains. Three years ago my doctor diagnosed me with Cfs and cps and told me there was nothing he could do to help. After collapsing back in November I went back to my gps and they ran some urine tests which indicated my kidneys were under stress so I was sent for blood tests. What she was looking for came back borderline but my b12 was low. So I was sent for more blood tests the following month to check this again and to do a immune thingy test on my blood (sorry I can't remember the name) my b12 came back as 119 and the other test was negative. I was given 1000mg b12 tablets two weeks ago. My problem is I have a swollen and sore tonge which has been since new year I have also been getting tingling in my hands and feet and suffer from pins and needles more than anyone I know does. I have been getting short of breath when I climb the stairs although I'm not unhealthy. I had no idea until I read up on b12 that these were symptoms. I had brushed off my tongue as I could have burnt it and forgotten as my memory is hazy at times, but it's still the same nearly a month on. The tingling I put down to cps or working too hard. Now my doctor has told me I'm to wait two months before seeing them again as I need to give the tablets time to work. Should I go back with my symptoms or will they tell me I still need to wait?