I appreciate that you'd like to hear from someone else who might have experienced this sort of thing before - that makes sense! However, this is something that really should be discussed with your doctor. We aren't healthcare providers and ultimately can't give you medical advice, nor can we diagnose you over the internet. Because what you're experiencing is causing you discomfort, you should definitely speak with a doctor who can examine you in person and give you medical advice.
Just as a side note, (more) lube is always a good idea! Even if you're having intercourse with someone and they are lubricating naturally, it's always okay to add more so that both you and your partner can enjoy sex without any pain or discomfort. You can also use lube while solo if having dry contact is causing you pain. More on lube here: Lube 101: A Slick Little Primer