Discoloration for,a while

Hi there hoping someone can help, i know I should go to a doctor, and will eventually

But I've got discoloration on my penis the gland, I've got white /grey blotches there and they are where the metus i think that's how it is Shetland down the back where the skin is attached if that makes sense, sorry for my words, it's quite dry and it's a bit red at the eye as well it doesn't actually hurt and haven't had sex for nearly a year, I've had this for a few months and it's starting to worry me a bit

Many thanks