All things can heal the body is amazing but no I have not had surgery
That's what I thought until I checked. Of the two hernia's you have, the umbilical hernia is the one to watch closely because rather than heal they tend to get worse. An umbilical hernia is a tear in the muscle wall that holds your intestines in. If your intestines escape their enclosure, they can strangulate. Ignore this and you can kiss your ass goodbye.
A stomach strangulation in the hiatus may lead to malperfusion, gangrene and stomach wall perforation with subsequent mediastinitis and peritonitis which is also life threatening. Do these tears sew themselves closed? A careful diet can placate a hiatal hernia, the idea of having one's stomach ascend into their chest cavity via the a hole in their diaphragm is pretty frightening. You've outlined your diet several times. It seems clear you don't cater to your ailments....of which by your telling are many.
So, by all means locate your weight belt and pray that it does more than they are intended to do. Ring me up when those two hernias have self healed. Better yet, report it to medical science because it will be something of a miracle. You could actually become famous. Much better than being infamous as the guy who died claiming his hernias would heal themselves and got it wrong.