Can Anybody Explain This Possible Spiritual Encounter?

well the way you explained it you saw green blue and red,,,,,, thosea re the 3 colours seen with light, the white dots, have happened to me before when i gto dizzy, almost fainting, or gettign up too fast. It could be your eyes,,, something to do with the light getting to your eyes- it gettign dark and all, or even soemthign deeper like a mental isuue- or brain problem...defienlty see a doctor tell him/her everythign and get some tests done-