Hi Scorpiojo, so sorry to read you've been going through such a terrible time and of your loss...
I know I've told you my story before, but just wanted to reassure you again and to say glad your Dr has recognised you need some b12.
Is there a reason why they've not offered you a loading dose of every other day for 2 weeks/ or until further improvement if you've neurological problems? Apologies if you've already explained that on here...?
As I said, I was petrified of just attending dr appointments because of bad anxiety, so couldn't imagine myself being able to walk in, and be calm enough for an injection, but just kept hanging onto the thought that the lack of b12 could be the reason I've been so anxious and ill so just had to give it a try! By the 6 th one I was begging for a third week, not just because I have a lot of neuro symptoms, but I then just started to feel a bit better! So quite a change from one extreme to another in a short space of time!
I also have mine in my arm, but like you, asked someone on here as wasn't sure which body part it was gonna be aimed for! No sooner do they say, just a little scratch, it's in and done, just a few seconds.
I had a bit if a delay with the first one as the nurse couldn't be sure the syringe was latex free (I have an allergy, had phoned and checked in advance too and was told it was fine!) so after 20 mins of sitting in the chair whilst she was checking, had to leave wihout it! Thankfully they managed to find out, rang me back and slotted me in in between patients later on, so by strange turn of events I actually changed my mind from being petrified of having it, to then being petrified I couldn't, after psyching myself upif that makes sense! I didn't even really feel the needle go in the first time, but that was my worse side for numbness, could feel slight pressure of it working down my arm,but have never felt that since with any others. My arm ached a bit for about a week with the first one, but nothing like that since, certainly wouldn't call it painful.
Think it helps if you can relax your muscle, so just try hard to at least keep that part of you at ease! I've read it also helps if it's out if the fridge at room temp.
It's no wonder we don't think straight with all this brain fog going on, is it, so don't be hard on yourself. No sooner than we know it you'll be on here, saying you've been and done it and we'll all be waiting to hear where exactly they did it after all!
Take care and remember you've got lots of people, and not just that nurse with your b12, behind you on Wednesday!