Hi welcome to Health care magic forum.
Thanks for calling H.C.M.Forum.
Your doctor told that you have haital
hernia. Recently you had more pain on the left side, above the bellybutton, and left side of your back. Could the pain be related to the hernia.
As you are thinking it could be due to effect of the haital hernia.
Other causes could be gastric irritation, due to ulcer, or diet habbitsof menu. or untimely diet habbits.
When there is a possibility if haital hernia it is always better to
consult a gastroenterologist for diagnosis and treatment,You may need to have M.R.I., gastroscopy, besides other routine tests for confirmation.
I also advise you to avoid spices, junk foods, and oily foods.
Wishing for a quick and complete recovery.
Best regards.