Hi again, and I hope Pablo is letting you enjoy a peaceful holiday!
Hubz has a loop colostomy that stays flush or even below skin level when lying down. When he stands, gravity allows a bulge to form that can get pretty large, though we've been assured it's normal and always retracts when he lies down.
Because of this, he has made a few adjustments. He has to lie down to place the new wafer, and without a protruding stoma, it's a challenge to get it centered.
The various convex wafers didn't help, so he went to a Hollister 2-piece drainable pouch with no filter. He can better see the placement of the wafer, then attach the pouch afterward.
There's no filter because keeping a layer of air in the bag helps give space for output to fall away from the stoma, preventing output from being pushed out sideways under the wafer (called pancaking).
What seems to help fill any space between the wafer and stoma (when retracted) is a barrier ring that's overlapped on the side of the belly button to double thickness. These rings are easily stretched and shaped and can be attached to the skin first or the wafer first. Because the shape is an odd oval, he attaches it to the cut wafer first.
Another key is placement. He needs both hands to center the wafer but has to do this lying down when retracted. We got an ad (maybe through Ostomy101?) for a mirror designed for wound care and ostomy care and decided to give it a try. The lighting and positioning are great, but the flexible arm would need to be longer for larger people, but still okay for Hubz.
https://medimirror.com/
He's not very active right now as he feels pretty crappy from the cancer infusions, so I'm not sure how this setup would hold up under physical activity, but he's only had 3 or 4 leaks that were caught early since August, so he's pretty happy and confident when we do leave the house.
Not sure if any of this might help your situation. These adjustments were all learned from others on various sites, especially this one! Hang in there. Things definitely get better!!🎄