A tentative, worried exchange. オズオズと (おずおずと) is a 擬態語 (state mimetic) for doing something timidly, hesitantly, with trepidation — often written in katakana for emphasis as here. 怪我してない uses the noun 怪我 (けが, 'injury, wound') + している ('is in state of having') — 怪我する means 'to get injured'. The repeated だ at the start shows stuttering/hesitation.