Paranoidude

Hey everyone Im wondering if anyone of u can gimme advice for this problem.

Im 19 and ever since I was 15 or so I noticed 2 very small flesh coloured bumps at the bottom of the head of my penis (meaning I have to lift the penis up in order to see them and slightly above the circumcision line) For years I just let it slide thinking it was probably nothing but as I got older they became more obvious. They got slightly larger in size and look like pimples with whitish-yellow heads when my penis is erect but when flacid they look fleshcoloured. From the pics I have seen on the net they dont appear to be PPPs. I went to the urologist several months ago and he told me they might be genital warts. But its just not possible because Im 150% virgin and have not had any type of skin to skin contact wit any person watsoever in my entire life. So the urologist (who doesnt even seem to be sure wat it is and told me I need to get them burned off "watever they are") helped me burn it off. well one of them seemed to disappear but then the other one got larger and I went back to get it burned the second time. Well although it looks alot less obvious now its still there only much smaller. Im very frustrated cause I dunno what they are, or how I got them, and I dunno if I wanna get it burned again cause Im afraid all the burning it gonna leave permanent damage on the head. I would also like to add I used to masturbate without lube and my head would get really dry maybe that might have caused them to grow in size over the years I dunno. This has really taken down my confidence but if any of you have any suggestions on how I should deal with this matter your help would be greatly appreciated thanks.