Bump in penile meatus

I’ve had this bump in my meatus for close to 6 weeks and now and a cut on the other side. I’ve been to 3 doctors who have no idea what it is I’ve been tested twice for syphlus, herpes, hiv, gonnarea, and clamydia. All results have returned negative. It doesn’t hurt while peeing but it burns after I pee. It stings when I wear tighter pants/underwear. I’ve been on numerous antibiotics and even given a shot in the butt. I’m freaking out the only thing left is hpv my doctor doesn’t think it is. She thinks it could be irritated. It looks different in different lighting. If anyone has had similar experiences please let me know I have been stressed about this. 

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