i had my appendix taken out while they were trying to find out where my belly pain was comming from after the surgery when i was all heal i still had the pain and got worse thats what made the docter figgure out it was RND (same as RSD just thats the pediatric term for it) i wish i never let them take out my appendix its much worse now.. but its in the same area it hasnt spread its still within the same area