nightmare still haunts me

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when I was a child, so about 10-15 years ago, I had a dream I was being attacked by a large bird that was ripping at my flesh on the right side of my waist - just below my ribs - with it;s claws and beak. it was a very very vivid dream.

however when i woke up, I had a sharp pain where the bird was ripping me apart in my dream and I couldn't stop convulsing, it felt like the bird had crawled inside my flesh and was living inside me. now I would just put that down to sleep paralysis even though I was sleeping on my side.
But the thing is, I still feel the pain in my side, and i get the sensation something is grabbing me and ripping at my skin and it just randomly hits me during the day and when this happens I'm overcome with feelings of uneasiness. it's been over 10 years and I still get this and I'm trying to figure out what it could be. it feels like that bird is inside my abdomen moving around and it's honestly freaking me out? ???