After supplementing with B12 and selenium, my B12 went a little too high and I found I was getting overactive thyroid symptoms including raised blood pressure and pulse. I'm not sure if it was anything to do with the supplements but nothing else showed up in blood tests. My FT4 was a little over range at 24.6 (12-22). Taking 117 levo. I don't have antibodies.
After stopping supplementing B12 and selenium for 4 months, I'm now getting hypothyroid symptoms (I think they're hypo symptoms) of cold hands, morning temperature not reaching 36.0. My temperature is consistently 35.6 - 35.8. I've got dry skin and my memory is not quite so sharp but otherwise feel ok. The labs won't do FT3 here.
Serum TSH level 0.11 ( 0.27 - 4.2)
Serum free T4 level 20 pmol/L (12 - 22)
So what is best to do?
1) Should I pay out to get B12 and thyroid bloods done privately to include FT3 and then decide what to do?
2) Should I begin to supplement B12 and selenium again?
3) Do I simply increase my Levothyroxine to combat the hypo symptoms?
I don't want to pay for unnecessary tests but I don't want to get ill either. All other vitamins are in good range including vitamin D which is mid-range as is the prevailing advice. I'm now on a maintenance dose. Ferritin also mid-range. Folate was high at last test.
Any suggestions about which course of action to take based on your knowledge or experience?