Well hey there fellow warrior. Regarding hernias...
Technically, an ostomy IS a hernia if you think about it: It's hole in your gut through which part of your inards are poking through. The question is will it get worse and if so how bad will it get and why? Right? So some folks are lucky enough to have it pretty much stay as it is. But many get one started in a couple of different ways. Mine sounds like yours: A bulge around the stoma that appears to be getting worse. It edid not help that I was given my stoma when I was 35 pds lighter than I am now. Weight gain makes it worse. Plus, as has been mentioned in other comments, straining makes it worse too: We're not suppoed to be picking anything up more than about 25 pounds. But if you have to be sure to do what you mother would tell you anyway which is LIFT WITH YOUR LEGS. Also, if you feel any pressure on your gut from lifting or anything else that's going to make it worse too. I've invested in an ostomy hernia belt (you can get them online from Ostomy Secrets and others) which helps but sometimes I use a second one to keep the stoma itself from squeezing out of the hole when I'm physically active. I also lay on the bed for 5 or 10 minutes and massage my gut to gently push the bulge back in before I put on the belt(s). ANYWAY, regarding the second belt, I can USUALLY tell when the stoma is active and then remove it to it doesn't obstruct the output. You can have it surgically reinforced but they don't let you use the plastic mesh any longer so they put in what they call "biologics" which desolve and sometimes work and sometimes don't and dissolve after about 5 years anyway. There are alternative surgical technicques like one call the "Sugarbaker" too. The best cure is having your ostomy reversed if possible, or maybe a J pouch -- although as far as digestion is concerned I've never had it so good and don't want to if I don't have to. Hope that helps; soldier on.