Blood on My hands Before the Interview

"I dreamed I was getting ready for something—I think work, maybe an interview—and I noticed blood on my hand. I couldn't find where it was coming from at first. There was no cut, no pain, just blood, and it kept appearing on my fingers like I'd touched something. I went into the bathroom and the sink was full of red water. I remember thinking I needed to clean it up before someone saw, which makes no sense because I lived alone in the dream. Every time I wiped it away, more showed up, but slowly, like it was leaking from somewhere I couldn't see. Then I was in a hallway at my old school, holding a paper towel against my arm. A teacher I haven't thought about in years told me I'd be fine and to stop worrying. I woke up before I could look under the bandage, and my first thought was to check my actual arm."