Should I lose some weight? (10 points)?

you have a great body. I'm 5'8 and 135-140, no one believes I weight that because I stay fit but its average weight for my height. your weight isn't just determined by your body fat how tall you are has quite a bit to do with it as well. Keep eating right and doing what you are doing. If you're staying fit and healthy that's all that matters even if you gain another ten pounds you'd look great.