I've been on Cytamen (four weekly) B12 injections for 38 years due to PA following partial gastrectomy in 1959.
In the days running up to my next injection I sometimes feel quite exhausted and to combat this scheduled a few 3 week injections - perhaps twice/three times a year.
However my nurse is now refusing to allow me to do this. Am I the only person to experience this feeling of exhaustion prior to an injection??