Hi I have been suffering with various complaints over the last 10 years...my B12 levels 10 years ago were 174...but my doctor said these were ok and could have not been causing my symptoms of chest pain palpitations depression and loads of others...recently i started having pain in hands and feet and bloods were done again they were 184 my doctor realised that this probably developed because of being deficient for so long left untreated..I have had one injection about 8 weeks ago and symtoms went within a couple of days but now they are back and the docotor says i dont need any more injections and that the daily amount of 50mcg cynaclobin is enough? could you give me some advice as have really bad pain in feet and hands and is getting me down...Thanks