I experienced this right before I was diagnosed and was the reason I sought help.

I was severely depressed, and my mind would race with thoughts/images of death and suicide, as well as negative things about myself. I couldn't sit still. I'd pace and wonder around. I couldn't sleep. I was impulsive. I couldn't focus on anything for long. My anxiety was off the charts. Eventually I started to feel like nothing was real. I'd see things out of the corner of my eye and feel like bugs were crawling on me. It was the worst and longest 2 months of my life.