Hi so I have this smallish round patch of skin on my side that is a different colour to the rest of my skin as you can see from the pic (ignore the little skin tag next to it I've had that forever) the patch of skin is smooth and feels no different to the rest of my skin it doesn't itch or hurt ( it is NOT rough or raised and there was NO mole there before) it was my husband that noticed it when I was getting dressed or I wouldn't have seen it. Any idea what it can be ? Obviously I will get it checked out at the doctors but they can't get me in for a few days yet.