It's easy to second-guess someone else, isn't it? I know you just want to be helpful, sending good vibes!
I haven't seen our visitor again. When it's warm and sunny in the afternoon, I've been taking whatever plants are thirsty outside for a drink. It's possible he/she departed during 'an outing.' About every time someone goes in/out at least 1 fly comes in, if it's still here and awake, I guess it's got something to eat.