That sounds stressful. I know I have some weird dreams, but nothing like that. It seems that our brains process various thoughts when we sleep and it can come out jumbled. Maybe yours gets triggered by combinations of experiences that may be hard to predict.
I hope the treadmill gets sorted soon. We get so much stuff delivered these days, but it can be a hassle when you need to be there when it comes. We're at home some days, so that helps.