I started daily B12 injections last week. I have now been scheduled for weekly injections. Before the injections I was having tingling in my face, hands, fingers and arms. I did not notice these symptoms during the time I was getting the daily injections. My last injection was last Friday and my next one will be this coming Friday. Today, I have been experiencing the tingling again along with some tremor. Could this be due to the lack of time between injections? My level was 179.