My story! I am an Ex-Muslim, became and Atheist. I was visited by an Angel of God.

[Salacious B. Crumb]

So, god appears to you, but not many other atheists? Do you think he cares about you more? Or, do you think it's possible as you were falling asleep, you woke up and saw a hallucination for a few seconds?

I don't think I'd be willing to change my entire life, off of something that was most likely a hallucination. Some people, upon awaking, can have visual and/or auditory hallucinations. I've woken up a dozen times, seeing a large spider crawling on the wall, and at first, I thought it was 100% real. I've also experienced sleep paralysis, but at the time I thought it was a dead loved one's presence, who had just died within the last few days. The room felt so 'charged' (turns out I was just scared out of my mind upon awaking suddenly in the middle of the night and paralyzed); I couldn't explain this 'presence' I felt. It wasn't a presence, I had symptoms of sleep paralysis.

Use your brain, and do some research. Don't jump to wild conclusions because this was a new, startling experience for you.