You know this person...the one who, no matter what your symptoms are, has it just a little bit worse. You can't have a headache around him, because he has a migraine. You can't have a sore throat; he'll have strep. You can't have tummy troubles; he'll have explosive intestinal distress. I don't know if it's simple one-upmanship or some twisted form of empathy, I just know that once in a while I'd like to be able to have my symptoms to myself.
When expressing the occasional monthly abdominal discomfort and being confronted with this strange "Me Too Iguana" behavior, my daughter has been known to ask, "oh...are you having your period too?"