For a few years now, My fingernails lift at the tips but this only happens on both my ring fingers and little fingers. Sometimes it gets better but it's usually there all the time. I read there could be lots of reasons why this happens and that it could be due to thyroid dysfunction. I have an underactive thyroid and take levothyroxine for it. It looks horrible and is embarrassing so is there anything I can use to help this apart from wearing colour to hide it?