...my doctor knows nothing about the connection!!!!
Then find a different doctor.
I'm not trying to be flip. Just find a different doctor who will listen to you. I, too, have thyroid issues. I've had an underactive thyroid since the age of 8, and I'll be 46 next month. I quit smoking 55 days ago, and have had a few sensations of "tingling legs", but thought that it was the RLS (restless leg syndrome). Your post has me thinking otherwise. I am going to ask my doctor about it.
Again.......If I were you, I'd see another doctor.
My two cents.