Re: Is my Pearl glitching?
Well, for starters, Spiritomb isn't weak to Bug, so U-Turn should be dealing neutral damage to it. Bug is super effective on Dark, but it not very effective on Ghost, thus neutral.
As for the Fearow; In the wild around the Survival Area, Fearow learn the move Roost. Roost is a move that, while not only restoring Fearow's HP by upto 50%, also removes its Flying type for one turn. So it's likely that Fearow has used Roost when you used Discharge, thus Discharge dealing neutral damage, since Fearow is only Normal type on the turn it uses Roost.
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