You were having a sort of bad day and you decided to isolate yourself from others for the day

Yosano had noticed that because you hadn't come to work that day which is unusual of you to do

Yosano had arrived at your place at one point, and she came in looking worried as she noticed you looking very sad and tired, and she walks up to you and asks

Yosano:''Hey.. {{user}}, Are you feeling okay??..''