My newly adopted 3 month old cat has regressed in socializing

by Irina
(Belgium)

Two weeks ago, we adopted a 3-month-old semi-stray kitten. I say semi-stray because her mother was a stray cat that gave birth in our friend's garden, who subsequently started feeding her and her kittens.

When we brought her in we did everything properly, with a separate room, slowly introducing her to the place, etc. The kitten that is shy in nature was doing really well. She went from hiding, to sitting in front of the window and even letting us pet her.

Four days ago, she had mild diarrhea for two days (there was no food change). She also started hiding behind a wardrobe in the living room and stopped meowing.

Her diarrhea is gone now. She eats, drinks, and goes regularly to the toilet. She comes out of the hiding place in the evening and plays with her toys.

Basically, she started hiding from us. She does not sit by the window anymore.

I was thinking about what happened, and the only things that come to mind are:

1. We had guests that went into the room to see her.

2. My husband tried to place her in his lap.

3. When she had diarrhea, she did kaka near the window where she was usually sitting.

I know that we should not force her out of her hiding place, but she is also out of reach there (if something is not OK with her, I can't even reach her).

She goes out of there to eat, and sometimes I put food nearby so she will go out of there to eat. She had very good progress, and it now seems she has regressed in socializing with us. Any advice? Thank you!