Need Advice Please (What's Going On With My Penis?)

Hello fellow fapstronauts!

I am currently on Day 15 on NoFap/no PMO. And I need advice.

It's my penis, it's like it completely lost it's mind or what. I overcame a weird feeling in my penis about a week ago which lasted about 10 days, then it went away and all was back to normal and I continued my streak.

But now something else is happening to my penis. I feel this small ache in my balls. Sometimes it goes up to my belly aswell. But it is no severe pain it's just uncomfortable. I sometimes feel my balls are gonna explode. I get a boner about 1-3 times a day.

It gets better/dissappears when I sit down or lie down. Can someone please give me advice please? What's going on? Is it the NoFap flatline? Is it because of the semen retention? Has anyone expierienced this? Please help, I don't know whats going on and I'm a bit scared.

Thank you.