He comes from the genus gentleman and the species southern.. The Southern is the more spicy part of the definition, indicating nonchalant attractiveness, extravagant spending, wild recklessness and smoothness with women. The genus is harder to define.
Yes, this is possible. If you have food poisoning symptoms, they are not necessarily from the meal you just ate. In fact, symptoms for the most common pathogens do not appear for up to 12 hours after eating the contaminated food, and can appear up to a week later.
You rightly assume that a bout of food poisoning is a short term affair which resolves itself without any long term effects. That is normally the case but a report by an American health organisation has found that food poisoning can lead to long term health problems. This includes irritable bowel syndrome.