For me there was no way of knowing that it was lightly raining outside.
There were no windows in the ICU.
A lot of folks have had similar experineces- I do know that God allowed the experiences, for what purpose? I don’t know. Real? Perhaps. Strange? Most definitely! The mind and spirit are mysteriously wonderful things. I know my experience, even though not an actual oobe, was “real enough” that it shook me and remains with me 40 years later as though it just happened. It was intense, and not something I wish to repeat. I suspect your experience was perhaps somewhat life altering too- forming your personal conception of life after death, strengthening lerhaps your beleif no doubt? These experiences have a tendency to do that, and rightful.y so.