What bug does this sound like?

[hairyone]

5 minutes ago, Guest50 said:

he told me that he doesn't take swabs because he never had an issue back there, even though many people with stis don't get symptoms

I hope you take this opportunity to educate him . He needs tested via swab.

[viking8x6]

14 hours ago, Guest50 said:

That is why I am getting these sti symptoms. 

As others have stated, you need to go to a doctor to get a real diagnosis. While some of your symptoms are consistent with and STI, there are many other things with which they are also consistent. Furthermore, once you do have a diagnosis, you'll be on much firmer ground in any communication you choose to do with your erstwhile sex partner.