Serious gastric pressure and spinal scoliosis 6 years after umbilical hernia repair w/sutures. Sutures out?

Thank you for posting your question here !My answer will be based on the limited information provided, for a detailed and bespoke plan I would recommend consulting with your surgeon in person.
I understand your frustration with the situation and I can see how you would connect your symptoms to the hernia surgery given that you started having them around the time you had your surgery. That being said it is very unlikely that the symptoms you are having are related to your hernia surgery , especially if it was corrected with just a suture repair since that is usually done when the hernia is less than 2 cm so it would be of little consequence to intra-abdominal pressure. Your symptoms are more likely related to your back issues and I doubt that removing the sutures will improve your symptoms. I hope this helps, best of luck!