WoW also has a quit button. Best damn feature of the game.
Ok, fair enough. That isn't very informative... It's very unlikely that any setting can change the FOV to levels that reach your comfort zone. The problem is that WoW is an online game and thus it needs to hardcode a rather limited set of options regarding FOV. Competitive modes of play would suffer if players were allowed to freely change these settings, as that would give an edge to anyone with larger monitors. I suspect there isn't much that can be done outside a limited set of options.
Motion sickness must be horrible. I never suffered from it. But I think I can imagine the discomfort. A quick look revealed there's these viewport addons... but I suspect that won't help you much.