A 19-year-old woman who believes she was spiked says she was "miserably failed" by hospital staff and says a nurse dismissed her as drunk.
Libby Woolford, from Porth, Rhondda Cynon Taff, was on a night out with friends on 25 April when she experienced the "scary" incident that left her "traumatised", "screaming in pain", and unable to walk or talk.
After briefly leaving her drink unattended to use the toilet, Ms Woolford returned and took a sip and within moments, she went from "nought to 100 in seconds".
A Welsh government advisor has called for stronger laws, better training, and more support for victims of spiking to ensure they are taken seriously and offenders are held to account.
Ms Woolford had just finished her second drink at The Banc club in Pentre, Rhondda, when she suddenly began to feel "very unwell".
She spent about 15 minutes vomiting a green substance in the toilet and became disoriented, unable to understand those around her.
Her condition rapidly worsened, with severe stomach pain, dizziness, uncontrollable shaking, and breathing difficulties, which prompted her boyfriend to call her mother for help and to take her to A&E.
Ms Woolford said: "It got to a point where I was laying down in the back seat, and I was screaming in pain.
"I was just in so much agony.
"This is when I began to feel my airway starting to close because I couldn't breathe properly, and I was gasping for air.
"I was so out of it I just didn't know where I was or who I was."
