I gradually starting noticing a few things were missing, but what if I’m wrong?

Q

Weird situation here that I have been too paranoid to talk to my other friends about, but I’m pretty sure one of my friends stole a few things from me and I’m not sure how to go about confronting her and I’m starting to feel crazy. For context, this friend and I are pretty close! We probably see each other a few times a month, but not quite weekly because we both have busy schedules. We met in college and stayed friends after graduation and share a lot of friends in common. We got closer within the past few months, which is also around when I asked if she could catsit for me while I was away on holiday for two weeks. She was really happy especially to have some solo time...