My daughter, at 7 years old, had Hernia Surgery.
Her's was an "Inguinal Hernia."
Keep in mind, that hernias can get worse. It is a hole in the abdominal wall... and the internal organs, poke out of that hole. Hence the 'bulging' of a Hernia.
Now, what is poking out of that hole/Hernia, are internal organs. Such as, intestines or in my daughter's case, even the Ovary.
IF a Hernia "strangulates"... this means, that whatever is sticking out of that hole, is getting strangled.... by the Hernia hole, which at any time, can close up. Hence, the internal organ if it is getting squeezed like a vise... and it is sticking out of that hole... it can GANGRENE, and it is then an EMERGENCY situation, and you can lose, that organ.
If an organ is getting strangulated... then you have about 2 hours to get into the ER and operating room.
My daughter had her's surgically corrected/fixed, via Laproscopic surgery.
She was a champ about it.
She said, she is GLAD she had the surgery because now she does not have to worry... and she was having pain from it too. And it was Bulging...
It is not about how much pain it causes... but the 'potential' for it getting 'strangulated.'
Look online about 'strangulated hernias.' or symptoms of strangulated hernias.
There are MANY types of Hernias and levels of seriousness.
My Daughter's surgery took 1 hour. General Anesthesia. Then recovery after. Of which, it can take a couple of hours. Then she came home. Rest and not doing ANY strenuous activity. Follow-up check ups. And per HER Surgeon, not doing anything strenuous or heavy lifting for about 2 weeks post-op... BUT that the incision takes IDEALLY 1 month, to completely heal and mesh together. He has seen, in kids, the incision/suture rupture/split, because the kid did not reduce any heavy activity after the surgery.
My Daughter, recovered fine and was up on her feet in no time. BUT... just to be cautious, we did not have her do any heavy activities, for 1 month. AND I told her Teachers in school.
Her Surgeon's own son, had a Hernia surgery... because one day, he got a call, his son was being flown in to the hospital, because his Hernia, was strangulating. The Surgeon said at that point, it is about 2 hours, that you have to do surgery on it... or you lose that organ due to Gangrene... etc.
Hernia Surgery, is done in various ways.
Sutured together or there is a "mesh" that they can use too.
EACH case is different.
The Surgeon, should explain this to you, per your case and issues.
Now, for Diastatis.... doing OBLIQUE stomach exercises is what is recommended. NOT crunches. But stomach exercises that you cross your elbow to the opposite knee sort of thing.
BUT your separation, sounds like a lot.
So, it may not work.
I have Diastasis. But my separation is not as great as yours.
Only about 2 fingers.