Hypo zero weird grey spot on head? And bump on tail.

I bought my hypo zero about 2 weeks ago and upon arrival he has some grey on his head right between his eyes and I don’t know what it might be? He’s a month and a half years old and I’m wondering if it will go away with his next shed or as he ages? I love him either way but I’ve look online and can’t find any answers what it might be. Possibly scarring? Or scales that fell out? Along with the grey on his head he also has a weird little bump on the underside of the end of his tail. I’ll include pictures it’s kinda hard to explain. Whenever I’ve looked it up online I get unhelpful results for tail rot which I don’t think it is but it’s super odd and he doesn’t seem to like me to touch it when I’m holding him. Any ideas of what this might be and if you’ve seen it before would be great! Thank you [XIMG]107124 8551154760[/XIMG]

The head looks like shed --- the tail not sure what that is --- someone w/ better eye and experience is gonna haft to look at that
Karrie