Sorry for the long post!
I’ve posted a couple of times in the PA forum as have been having blood tests relating to low B12 as had a borderline serum result 192 (181-800) and range of symptoms pointing towards this - tingling and numbness in hands and feet, occasional tingling in head and back, severe fatigue, brain fog beyond belief, aching joints and random breathlessness being the main ones. Also increasing cholesterol- 4.2 to 5.9 over 3 years.
I had full range of tests done privately with Blue Horizon in early July which showed active B12 is well within range, MMA okay, no IFA or gastric parietal cell antibody. Only things that showed up were:
Homocysteine raised just above normal range - 14 (3.7. - 13.9)
Low reticulocyte count - 37 (50 -100)
Raised Lymphocyte count - 3.5 (1.0 - 3.0
Before heading back to GP I thought it would be useful to explore possible Thyroid issues as am aware that some symptoms overlap. I had the Thyroid Ultra Vit RT3 test done by medichecks on 14th August for which results are attached.
The comments provided with the results suggest everything is within range (high active B12 explained as I have been supplementing with sub linguals), and although my serum folate is in the lower of the normal range (and has dropped from a result of 10 in June), I have since started supplementing 400 mcg daily along with B12, so believe if was to test for this now it would be on the increase. I would really appreciate the thoughts of this forum if possible as realise that ‘normal’ reference ranges used for Thyroid testing might not always pick up an actual issue.
My symptoms still exist and, being self employed, it is limiting the amount of work I can take on as I’m constantly tired and my brain no longer works like it used to.
Any thoughts or advice you can provide would be greatly appreciated as I hope to go back to GP with results from the 2 private blood tests to see what next steps need to be.