Hello,
I suffer from Body Dysmorphic Disorder, it was never officially diagnosed but based on the criteria I think I have it. You may know of the delusional variant of BDD that a certain percentage of sufferers have, this is basically a more severe BDD (they have less insight) combined with referential thinking (delusions of reference) that revolve around the persons looks, so they will think others are taking special notice of it and ridiculing them for it.
Link about it: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2915600/
Most delusional BDD'ers will just get a Dx. of BDD, not delusional disorder, probably because delusional disorder somatic type is fairly broad in terms of what body part it can effect, and BDD explains it better.
Personally I'm utterly convinced others mock me on my looks, such as telling eachother "look at his face lol" which I guess would mean I'm delusional (unless of course they are in fact mocking me, no one has truly confirmed or denied this when they're out with me). And this, combined with other factors, has led me to become convinced that others are out to get me and want to watch me fall.
I was wondering if anyone here knows more about this? If I really do have Delusional Disorder I guess it would explain why I have so called "delusions of reference".