Had kefir and kimchi before bed and my dreams were horrible

I often eat fermented foods, my gut is used to it, and I dream a lot and vividly very often. But last night, I had kefir and kimchi right before bed, and I’d had a couple of beers earlier when I was out. The dreams this time were way more intense, like horrible vivid nightmares. Anyone else ever get that from fermented stuff?