Ever since I gave birth to my twins vaginally (4 years ago) I have had some pain initially with intercourse. The pain feels somewhat close to the G spot, it's pretty sharp, sharp enough for me to pull away or push my partner away from me. The pain gradually decreases over a few minutes, so it doesn't cause too many problems, however, it is something I have started to worry about because I assumed it was something that would go away with time... but it hasn't.

Does anyone else experience this? Any idea what it could be? Should I even be worried?