Hi all, I'm new to B12-deficiency/Pernicious Anaemia, but have been having symptoms for many years. Lately, after moving to a tropical climate (Singapore), things got way worse all at the same time. The worst symptom is the fatigue/constant exhaustion. I also got really bad muscle weakness and overall body aches, balance issues, to the point that I was afraid that I would get crippled. I've always had problemes with body temperature regulation, cold hands and feet, psychiatric symptoms (diagnosed Bipolar 1 ten years ago), and recently got electric like shocks in feet, my vision went suddenly downhill spectacularly and lots of other things I can't remember.
No Gp/specialist could ever figure out what was wrong with me, until I recently saw a Dutch haematologist specialised in B12-deficiency. He prescribed me 2 B12-shots of 1000 mcg of Hydrocobalamine/week, changed later to 1 shot/week. The issue is that I am staying in Belgium right now, where the shots are done with Cyanocobalamine. After my first shot I got a real worsening of symptoms, my back pain was much worse than before the shot and I felt like I had a bad flu/fever as if my immune system was fighting something. The 2nd shot was Hydrocobalamine and I actually started improving/even getting rid of my back pain about a week after that. Unfortunately, I forgot to bring the Hydro on my 3rd appointment and the dr. was rushing around (leaving next day on holiday) so he gave me again a Cyanocobalamine shot. The same night, I felt like I had a blocked (right) ear and ringing (which went away the following day even before I went to see my usual Gp who said my ear wasn't blocked (I've often had wax build-up in my ears in the past). So I was reassured. But the same evening, I seemed to have some kind of sound (but not ringing) when watching the TV. I'm feeling flu-like again (enlarged gland under my chin right side, cold chills during the night and feeling run over by a truck). I couldn't find anyone's testimonial with a similar experience. I'm worried that the Cyanocobalamine is doing damage to my body/giving me adverse reactions. I am aware that things often tend to get worse before getting better and that it's still very early days (4 shots) in my case, but it's really hard to persist especially as I also have bad anxiety/OCD and I'm alone most of the time worrying (I fled Singapore but my husband is still there as we'd only moved there 11 months ago).
I do think I have B12-deficiency because of absorption problems (I haven gluten intolerance and IBS) and that the little B12 I had got depleted by the tough climate in Singapore. I just would like to know it will get better.