Precognitive dreams are a bit different from premonitions. Premonitions are usually more of a gut feeling or just knowing something, but what you’re talking about with the surgery and mustache sounds like actual precognitive dreaming, where you see specific details. This can be a separate thing that gets stronger when you’re going through a twin flame connection. The fact that you remembered those specific details probably means your subconscious was filing them away so you’d recognize the situation later. Kind of interesting that you’re remembering this stuff now.
There’s also this good thread on music as a TF sign.