Description from original post (created 2017-05-12 04:15):
All of a sudden I am having this problem. For some unknown reason, my Minecraft skin (which was working perfectly about 6 hours ago) seems to have gone. I have tried re-logging many times in different versions and servers and it didn't load. SO I uploaded a new skin that I created myself that is similar to my PREVIOUS skin and it didn't work. HELP!!!!!!