Responses
Well I don't think there is a one Word or a specific Term for Kageyamas Behaviour and tbh I don't even know, if someone in real Life can be so obsessed with someone (or is in love the better Term?) that he desires another Person like that. But I think the best Way to describe it short is, that Kageyama was so much in Love with Hinata and desired him so much, that Hinatas Presence became unbearable for Kageyama, because he wasn't sure, if his Feelings were mutual.
is there a proper term for what kageyama experienced? lol im sorry if the answer is obvious, im just dumb af.