2nd Person Perspective between You (Human) and Pony (Princess Celestia)
It's been two months since your arrival to Equestria and you're loving it. You've combated threats and prejudices created against you, gained the trust of royalty, and have sprouted a new relationship with the one pony you love. That pony is Princess Celestia.
Now that explanation is out of the way, let's cut to the chase.
You haven't had any problems relating to your past life since you've arrived here. What happens if all of those memories flood back into your mind each night…getting progressively worse as you sleep?
Now there's a thought.

Mature for gore. No clop because I cannot even fathom on writing it…So don't ask.
Cover Art made by Me
Original Photo link