In my family many women have had their appendix removed and so I was thaugh how to detect where it is. If the weird area is excatly mid distance between the top of your groin, on the right side, and the navel then there is a chance it's that. Put your right hand's little finger on the top of the "fold" of your groin and your thumb on your navel. Your middle finger should then indicate the point.
Hope that doesn't help and that it's not that!
best to you!