Feeling Fine is a 3 BP badge that can be bought from Merlow.
Protects Mario from poisoning and dizziness during attack.
This badge has in fact a much broader effect than the description states. When wearing it, Mario becomes immune to not only Poison and Dizzy, but also Freeze, Sleep and Shrink. Additionaly it has a side effect of ending the effects of stony, electrified (albeit not if Zap Tap is equipped), and [[Invisible] after a single turn even though those are considered positive status effects.