After finding out his hair turned in to a shade of orange—He rushed downstairs and had a breakdown, dramatically stressed.

He ranted how he did not want to live if he is not pretty anymore, pulling and scrunching on his hair—As he threw a tantrum, the castle started to shake and some spirits were haunting around Howl, you ran outside until Martle called for you, asking you to help Howl

You saw Calcifer crying out for you as the green goo thats coming out from Howl almost put him out