After reading your post, I’d to cross check my toenails to know if this disease you mention was the reason because I’ve one funny toenail growing there although it doesn’t pain me.
Early last year, it started pulling out on its own, I was expecting a reasonable one to grow out, unfortunately it is taking the same shape like before.
There’s this popular one that affects nails we call “wiklo”, is it also a nail disease??
I think you should see a dermatologist or, better still, go to a pharmacy and get terbinafine tablets. Thanks for your support.