Real quick I was s**tfaced drunk when I watched the last episode and JUST rewatched it. I was under the impression that Charlie had that vision of Claire because he had a near death experience. But Desmond, when he had the vision Charlies hand, he was not having a near death experience. In fact, he had already got out of the car, swam to the surface, and gone back under, so we was undoubtedly not having a near death experience.
So my question is, what caused both of them to have those visions? Is it because they were reliving a moment similar to one they had on the island in the original timeline? Obviously that exact scene happened with Desmond and Charlie in the original timeline on that finale. But was there a time somewhere in this series that Jack took a bag of heroin out of Charlies throat or some s**t in the OT? I cannot remember. I remember during the early seasons Charlie had that bag of heroin though. I just forget what happened with it.
Sorry for this question being a week late, but it was a small thing I did not notice while drunk last week lol.
Edit: Or am I just over-analyzing it and it was because Desmond had a near-death experience?