Was diagnosed with plantar fasciitis - indeed, having it was the reason for my first TSH test. Mind, that was my suggestion, not the doctor's. A bit over 2 - but it was a peg in the sand against which later tests were compared.
Resolution of PF, for me, happened over quite a long time. It took a combination of both treatment for hypothyroidism and orthotic inserts in my shoes.
Before that, I was given exercises by two different "experts" which were aimed at stretching my Achille's tendon, and attached muscles. All they did was make my PF worse, far worse. But not as bad as when I got custom "hard" orthotics with arch support - it was something like wearing them for two hours put me in pain for two weeks.
The inserts I actually still use are simple diabetic insoles plus very modest heel wedges. You might find something entirely different helps your feet! My feet are *very* odd.
It is usually claimed that hypothyroidism causes carpal tunnel syndrome because of the build up of mucopolysaccarhides (hyaluronic acid) which press on nerves. Might well be true. And that might also be part of the PF issue. But there is far too much uncertainty.
Also consider whether there is any possibility of insufficient vitamin B12 - or excess B6.