‘It took 17 years to get an endometriosis diagnosis – by that point it was even in my lungs’

During almost two decades of experiencing excruciating pain that has driven her to A&E multiple times, Monica Thomas has been dismissed, accused of lying and “faking it”.

From the age of 15, Ms Thomas, 34, says she has faced a battle to find the cause of worsening pain in her pelvis, bowel and eventually her lungs.