issues :(

image

I got tested around a month ago and all came back negative around this time the reason for test I had noticed not visible in colour but slight raised bumps on my penis when cleaning in the shower. I have only had sex once since being tested and this was fully protected. Now since around a month ago noticing the bumps they have appeared to get slightly bigger and turned yellowish in colour as you will see in the picture. Could anybody give me some knowledge on what it looks like to you guys has anybody had the same or similar issues? Please help would be valued and appreciated, Thanks.

Suggest you get visually checked at a sexual health service or GUM clinic