Is it possible for the self-talk that comes with the same voice as the person and tells them what will happen to be from Allah, given that Satan does not know the unseen?

What one experiences inwardly, whether inspiration or spiritual unveiling (kashf), can be psychic, satanic, or divinely-inspired (Rahmani). Psychic unveiling may occur due to a weak connection between the soul and the body. Satanic unveiling happens when devils inform soothsayers and others about unseen matters. As for Divinely-inspired unveiling (Kashf Rahmani), it is the noblest type, occurring through the information conveyed by angels, and it is a divine honor bestowed by Allah upon His believing servant. The partial unveiling, common to both believers and disbelievers, is sometimes from Satan and sometimes from the psyche. However, Divinely-inspired unveiling (Kashf Rahmani) is what occurs to the allies of the Most Merciful. The fact that an unveiling is truthful does not mean it is Divinely-inspired (Rahmani), and it may not contradict Allah's sole knowledge of the unseen, as this is a restricted unseen which some creatures are informed of, not the absolute unseen.