To be honest, whilst I can see where AC is coming from, if scubaman's problems are serious, not just some lameass joke, then I think you've gone too far.
I probably would have agreed with AC if I didn't suffer a mental disorder of my own (it's not penis related, but one of continually misinterpreting other people's actions or words). It was, in particular, the line about passing other guys on the street and apparently seeing them adjust their pants, and concluding that this was because they thought his dick was small, that I could relate to. Scubaman, it sounds like you do have some sort of mental condition.
The penis bugle seems to be an issue which is eating away at you and you're now continually misinterpreting innocuous acts, like a guy putting his hands in is pockets when you pass him in the street, as evidence that everyone else is staring at you groin and sizing you up. The reality is probably that virtually no-one is checking out your groin at all (unless they're all really weird in your town), but you've got yourself into an obsessive mental state about this issue where it's on your mind a lot, and so a lot of your thoughts are based around it. It might be an idea to go see a psychologist/therapist. This sort of mental disorder is quite treatable.
Also, have you tried buying a different type of underpants? I recently started buying a lycra trunk type of underpants which are incredibly comfortable and have a nice pounch for your package to sit in, and this pouch seems to give the package a bit of a lift up and push outwards...I guess like a wonder bra does for tits. They make me look like I'm quite well hung, even though I'm barely average. It may help to create a bulge through your jeans. I never wear jeans though, so cannot comment on whether it'll actually give you a bulge through your jeans...perhaps you could try different types of pants too? Or stuff a couple of pairs of socks down there and see if you get a different reaction.