I know right after my wide excision surgery for melanoma, I was seeing all kinds of things on my skin. Heck, I even thought I spotted a mole growing on my excision scar!! AND I was going on vacation for 2 weeks, so I really freaking myself out. So, a month and a half after surgery, I was back in my surgeon's office having him look at what I swore was a tiny brown mole developing on my scar. Turned out there was absolutely nothing there. But! It put my mind at ease during vacation - even if it did make me look like a crazy paranoid woman at the time!
I look at it this way: melanoma is an extremely aggressive form of cancer. The earlier it is found, the better the prognosis. The majority of melanoma is discovered not by doctors, but by the individuals who have it. If I find something that looks "off," or "weird," I'm not taking any chances - I want it checked. If the doc thinks I'm paranoid? So be it. It puts my mind at ease, and s/he gets paid for an office visit. I think that's win-win.
Now, if I'm in the office every week or every month, then something is definitely wrong, and that needs to be addressed.
So, my opinion? Go, get it checked out. If it's bothering you, put your mind at ease. It's probably nothing, and the doctor most likely looked at last month, but make yourself feel better now. Just watch yourself and try not to get too panicky and find an excuse to see the doc every other week.