Clips will be applied to cystic duct and cystic artery during gall bladder surgery
They should not be removed as there will be Bile leakage from cystic duct and the artery will bleed.
It is not possible to remove them.
13-24 clips are more in number.They might have applied due to unexpected injury to any structure.
But,complications after 20 yrs are rare.
PAin abdomen and rash are due to some other causes.
Get an Ultrasound
abdomen or CT scan abdomen ,Serum Amylase
and Serum Lipase levels.
Consult a Gastroenterologist
Nothing to worry
Wish you good health