This is so random really hope this is the right place happy to be corrected if not!!
For about 3/4 years now I have had a really manly toenail, have had it tested at docs at my first address and they tested for few different infections and all came back clear/negative. It is a really weird colour, rock hard (almost impossible to cut) hurts when I try and smells awful no matter how much I wash/scrub/scrape it!! 
I have a pic of a large bit I cut off but it is really gross so didn't wanna post first time! Just wondering if anyone had any ideas what it might be/what it is?! Thank you in advance!