First time here... first time posting about my health online. I'll try to keep this short. 5 months ago I started experiencing numbness in foot and tingling in hands and feet. Blood test showed B12 was 221 - within the normal range but I started taking the sublingual methyl-b12, 5000mcg daily. I also started taking iron with vit C because my ferritin was 23. No anemia. The tingling stopped in a couple of weeks but turned into weird vibrating, then burning feeling in my feet. Always in the afternoon when sitting at work, usually lessening at night and not interfering with sleep. I also had my toes or entire arm fall asleep during the night and take a lomg time to come back to life.
Since then, it got better and I lowered the b12 dose, then raised it again when the symptoms persisted. Tried adding folate and other B vitamins. 6 weeks ago I stopped iron as was getting constipated. Started a gluten free diet, which made me horribly bloated at first (not the unhealthy gluten free, more just wheat free with more veggies, smoothies, liver) Became almost symptom free but then had a couple of tummy bugs and digestive issues and the foot burning came back. My fingers and toes started falling asleep again when sleeping, but would recover quickly. A couple of weeks ago I started taking iron again and it gave me a lot more energy and seemed to improve circulation... but then I had another blood test. I had taken 2 iron tablets within the 24h before the test and my ferritin was over 70. Folate was high. I asked the doctor and he said the tablets wouldn't have significantly affected the results. So I stopped taking iron and feeling more tired, toes permanently cold and the foot burning slightly worse. I was also tested for h pylori (neg) and other bacteria/parasites (neg). TSH 1.48 (was 2.01 before), no diabetes.
So, can this still be b12 related (if it ever was) or what could it be?
There have been other minor sensations / symptoms but pretty fleeting and I'm a sensitive person so I wouldn't say they are significant.
I'm 36 and mother of one. Had thyroiditis after pregnancy (hyper, then hypo) but it settled. Healthy diet, no alcohol, no smoking... but clearly becoming a hypochondriac