Does this mean I have skin cancer?

I’ve been tanning this summer. Recently, I’ve noticed these white patches of skin. One is on my cheek, and there are two on my stomach. There is also a dark one on my shin. None of them are very visible, unless you’re really looking at them.

I did some research online, and I think I may have destroyed some melanocytes, which are your melanin (aka:pigment)-producing cells. Apparently, the sun can do two things to your melanocytes: enlarge them to create freckles, or destroy them to create uneven pigmentation, such as white spots.

I think this may be my problem. It isn’t skin cancer, is it? And is it permanent? How can I treat it?

Lung Cancer