First of all I want to say thank you for all that I already learned from this forum.
I am not diagnosed with PA, but I have hypothyroidism and on Levothyroxine for the last 17 years (current dose 150). During my recent GP appointment I was told I have low iron and should take iron tablets. I told my GP that these give me stomach issues and I will eat more iron-rich foods instead, and he was happy with that.
Few days later I went back to my GP practice and asked for my blood results. I found that my iron was actually much lower than I expected 5umol/L (range 5-33umol/L). My results also showed: transferrin 2.71 g/L (range 2.15-3.8), folate 16.7 ng/ml (range 5.4-24), ferritin 55ug/L (range 10-291), iron saturation 8% (range 15-50), and serum vitB 308 ng/L (range 180-910). Also, I recently had private vit D3 done which was 23.8 ng/ml (normal is >= 30).
I started reading HealthUnlocked to learn if my symptoms are due to low iron, and I realised that it may actually be functional B12 deficiency. Symptoms include: extreme fatigue (waking up tired with muscle aches, tiredness increase over time and peaks at about 3pm, some days have to lock myself in the ladies room and close my eyes for 5min or I'm unable to cope at work), general muscle weakness (struggle to carry my 10months old for more than few minutes, can't carry him up the stairs and if there is nobody to help and I have to do it, then I'm breathless and have burning leg muscles after climbing to first floor), numbness/tingling in fingers of both hands, balance problems, visual disturbances, forgetfulness, sleep disturbances, history of depression, irritability and mood swings, skin hypo-pigmentation and had real trouble getting pregnant until supplemented vit B12 by chance after reading somewhere that it helps(I stopped supplement as soon as I got pregnant though as I didn't know the impact on pregnancy and was scared to self-medicate).
Note that I may actually have absorption issue since both iron and vitD are deficient and B12 is low as well.
My question is - with these symptoms but "normal" serum B12, is there any point asking GP about B12 injections or should I just supplement myself? Did anybody get their GP to prescribe injection with serum level around 300? And if supplementing, then how much and for how long before asking to check blood again?
Thank you so much for any advice.