>>7061006Best as I can guess (as a complete amateur who has never had a direct conversation with Polka) she strikes me as someone with Cyclothymic Disorder, which is basically mild-moderate bipolar depression. Polka has huge ups where she does tons of work and bites off way more than she can chew with a smile, and then sometimes she just crashes and struggles to do stuff that is normally easy for her.
She also seems to have some social anxiety, but whether that constitutes a unique diagnosis or it's just a symptom of generalized anxiety is unclear. Then she just has some self esteem issues, but those are nothing out of the ordinary, and wouldn't really constitute a diagnosis.
All in all, Polka has some stuff she struggles with, but compared to some of the other menheras in Hololive she's got a lot more control over her feelings and better ways of managing them. I wouldn't worry about Polka, it seems she's been dealing with this stuff from an early age and has gotten good about knowing when she's not doing well and when to take a break, just like she did recently.