>>46765924eh I've seen worse concernfagging
If it's something she's willing to address on stream then it's nothing worth fretting over. Your oshi frets enough for herself and shouldn't need to carry the burden of your worries, too. Just cheer her on and remain positive while listening attentively to her concerns, and if it comes to that, then it comes to that. She'll be off doing something productive in the meanwhile, so you should too.