Distressing footage shows a mother-of-three violently shaking in a hospital corridor after she claims bungling doctors failed to spot her infection.
Charlene Jones, 31, said she suffered 'unreal pain' following the operation to take out the organ at University Hospital Coventry.
The patient believes she just had a gallbladder infection, before doctors decided 'they knew best' and said it was her appendix causing her problems.
As a result of the wrong diagnosis, it is believed the infection spread and took hold of her body - leaving her screaming because of the stomach pain.
Unhappy with the care she received, Ms Jones decided to seek urgent treatment in Birmingham. And she believes she would be 'seriously ill or dead' had she not.
Speaking of her ordeal at the hospital, she said: 'I was examined the following morning and I was told that my pain was due to my appendix.
Charlene Jones (pictured before the operation left), 31, said she suffered 'unreal pain' following the operation to take out the organ at University Hospital Coventry (pictured in hospital right)
'Due to my scan I believed I was suffering from cholecystitis, but believing that they knew best I went into surgery that day.
'I woke up at 8.45pm in recovery. I was shaking violently with stomach pain, screaming, knowing something wasn’t right.'
University Hospital Coventry and Warwickshire has been asked for comment but said it was unable to discuss individual cases.
Timeline of events
When Ms Jones arrived at University Hospital Coventry she was given an ultrasound scan which showed a thickened gallbladder.
Doctors at the hospital, which is also known by locals as Walsgrave, also said she had cholecystitis - inflammation of the gallbladder.
She claims nurses wouldn’t offer any painkillers stronger than paracetamol and she was discharged on August 2, the day after the operation.
Ms Jones went home but her condition deteriorated and the following day she went to the hospital's A&E department.
Seeking help elsewhere
After deciding she wasn’t happy with the care she was receiving, Ms Jones left and sought treatment at Birmingham City Hospital.
There she was put on morphine and antibiotics drips, before being transferred to Sandwell Hospital, near West Bromwich.
At that hospital, she claims she was treated for septic shock, and scans revealed she was suffering from a serious gallbladder infection.
I strongly believe that I would be seriously ill or dead had I not gone to