I know this is probably a stupid question, but I am scared that some of my symptoms will never go away and wondered if I am expecting too much too soon. I started increasing my B12 doses by adding injections about 3 weeks ago. I cut back on my transdermal B12 and added the injections but that didn't seem to work. Then I added sublingual B12 and gradually increased sub and transdermal adding an injection every 2 or 3 days. I am now taking 8 doses of transdermal B12 daily plus 4-6 doses of sublingual and a subcut jab every second day. The roof of my mouth had been extremely tender and my tongue was burning plus I had palpitations. These symptoms have largely subsided but my tongue remains swollen (has been for over 12 months) and my arms and especially legs feel weak and tired. They have improved over what they were but are not 100% yet. But I am wondering if they ever will return to normal. I am expecting too much too soon?