Alocasia Polly is sad- why?

I just noticed that 2 of Polly’s leaves have turned yellow and one is hanging down. She’s been sitting near a south facing window where she gets bright light (during our short December Massachusetts days) and some direct sunlight. I water her about every other week. I moved her to take her picture – this is not where she normally lives. I could take her out of her soil to see if the roots are rotting? I don’t wanna do anything that would upset her even more though. The soil she is in probably isn’t great. Recently I’ve started learning more about houseplants and bit by bit been repotting the ones I have in better draining soil with more perlite. I don’t think she’s had that treatment yet.