Obese, recently stated having mostly unilateral tenderness

[satanigatan]

I'm Obese, middle age man, recently stated having mostly unilateral tenderness, but I don't feel any lumps in the breast. Its more like a bit swollen and tender when pressed. Also the nipple is more tender than usual. I've had it before (but less tender), and then it has gone away. This time its more prominent though.I guess its a good thing I can't feel a lump, but I worry it could be something else. I'm also taking medications that can have gyno as side effect rarely. Seeingmy GP in 2 weeks.
Should I be worried?