Testicle Bump Sorta

Alright this is a weird one. Noticed a small, firm-ish bump on my right testicle, at the bottom of it where I believe is the coil to my epididymis. I've just noticed it however I've never really given a thorough check until recently, I'm 22 so figured it's time to check regularly. I have no sensitivity, no "signs" pointing to cancer, and money's tight and I'd like to avoid the doctor if possible. I've kept an eye on it for roughly a month and haven't noticed any notable change in size of it, or any symptoms or anything out of the ordinary. Anyone else ever have anything similar? Do I just have a weird nut? Kinda new to this shit. Any feedback would be cool. Thanks