HELLO, TOTAL PAIN GOES AROUND IN ONE N HALF MONTH. DOCTOR REMOVE EXTERNAL STICHES, BUT INTERNAL STICHES DISSOLVE BY IT SELF DEPENDS ON BODY TYPE, IMMUNITY. YOU CAN CONSULT YOUR SURGEON FOR SEVER PAIN N FEVER, MIGHT BE SOME INFECTION INTERNALLY. NO RELATION OF CHEST PAIN,YES BACK PAIN MAY BE THEIR. SLOWLY ALL PROBLEM RESOLVE. TABLET FLEXON TWO TIMES A DAY AFTER FOOD OR AS REQUIRED YOU CAN TAKE. O.K, BYR.