In her own words:

I conceived via IVF last year and had a textbook pregnancy, asides from a little heartburn. I had my blood pressure checked on the Friday and went into labour at around 6pm on the Saturday. My waters broke and they found some meconium so kept me in for monitoring. I had a slight raise in blood pressure, which they put down to the stress of labour. I started getting excruciating pain in my shoulder, which they thought was just labour pains or indigestion.
My son was delivered by emergency c-section and the delivery went well. However, immediately after I couldn’t stop being sick and I was not passing urine. I was having observations constantly and they were minoring my bloods. They found my AST and ALT was elevated which indicated HELLP syndrome. What they didn’t notice for quite some time was that I was bleeding from a tear in my liver. They ordered an urgent blood transfusion, packed my liver and I ended up in ICU. I was transferred to Kings College Hospital where they had liver specialists. Because HELLP syndrome is so rare, the healthcare team did not immediately think of this when I complained of shoulder pain.
I cannot fault the team who was caring for me, but I experienced severe blood loss and there may have been opportunity for earlier intervention if the knowledge base was there.