Firstly, I would recommend that you see a pelvic rehab specialist. You should have imaging done of the area to make sure there’s nothing going on. If all studies are negative and depending on the specific location of the pain you might have pudendal neuralgia. This is very difficult to diagnose from the information I have.

You should see an orthopedic surgeon. It may be a separation of the pubic bones at the synthesis pubis. Are you an athlete?

This could be a pelvic floor issue, a pubic symphysis issue, or some ligamentous laxity based on posture. Regardless, finding a pelvic health MD or a PT who specializes in pelvic health could help you manage and hopefully get rid of that pain.

I hope that this email finds you well,

With the utmost respect I would make contact with your primary care provider and have a physical examination performed as severe night pain is potentially a sign of an underlying pathology which may or may not be related to the musculoskeletal system. Following a visit with you provider, seek Physical Therapy as an examination would need to be performed in order to identify the root of the problem, as it could be a whole host of things such as sacroiliac joint dysfunction, an "upslip" pubic shear or a multitude of other diagnoses.
I hope that this helps.

It would be best for you to see your family physician. Good Luck

This could be a lot of different things. You should talk with your family doctor about it

Hello,
You should come to physical therapy for a formal assessment. I encourage you to call the closest PT office and get in for a formal evaluation to assist with the pain you are having. If you have further questions let me know.

This can be endometriosis or an intra-abdominal mass. Check CT scan of abdomen and pelvis and vaginal/pelvic US.