Constant abdomen pain after hernia repair normal?

Had an umbilical hernia repair done in 2015. A suture was left had an edoscopy done n was removed....pain went away. Now been in constant pain last 4 months...all ekg,exrays,etc are normal. It has been chalked up to scar tissue adhesion pain...went to same doc and he did a feel test and said it wasnt a hernia. Could it be from the repair?should i get another opinion?

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