Hi - firstly, congratulations for 3 years post diagnosis! That is wonderful - hope I will be as lucky. You have done so well.
I have not been diagnosed as hypothyroid, but did have some peripheral neuropathy after 12 weeks of taxol - mainly my feet. I found that walking briskly for 30 minutes a day really helped it disappear, and on the days I didn't walk it sneaked back. Sometimes it was the last thing I felt like doing, but the perseverance paid off, and 7 months post-chemo I hardly notice it any more. Did you walk too?
Like you, I was TNBC and had the full treatment - breast surgery/chemo/radio/hysterectomy - and I am still walking. Sorry, I don't know anything about hypothyroidism - I hope someone else can help with that.
I hope you are feeling better, and again, congratulations on a great achievement.
Michelle x