bumps

I've recently started exercising as I'm over weight and on Saturday I went gym. Pee'd like twice before did my work out and when I came back I had a little sore feeling down there. I of course panicked like a psycho cos every time I get a spot or something down there I assume the worst. 
So it felt like a small cut and I thought just see how it goes over the next few days. After the initial stinging whilst peeing it didn't hurt at all and didn't hurt to the touch either. Now on Tuesday it's completely not sure even when I'm proper touching and pressing on it. It now looks like it has healed up but has left two tiny bumps. The bumps are dry and quite hard, I've tried to 'pop' them but nothing. There is also no pain what so ever. The bumps are close to another load of random bumps which I've had all my life, they are also not painful at all . Do you think this is how the cut could have healed? I have had no pain/discharge/scabbing over or anything. Unless u knew it was there you wouldn't even see it. Any advice as I'm losing my mind with worry :(