Ms White, from Bradley Stoke, has undergone scans which will determine how long-lasting her symptoms will be.
She is speaking out about her ordeal to raise awareness, and stop the same thing happening to someone else.
“I never thought this would happen to me,” she said. “I’m 43, I was out with friends with family involved, we were in a safe environment – or so I thought.
“I have very little recollection of what happened.
“I don’t understand why this happened to me. I wasn’t mugged, no one followed me.”
After she started to feel strange, she left her friends in search for 18-year-old son who was at a nearby bar.
She says she cannot remember what happened next.
Her partner George, 53, was called by strangers who found Simone on Bristol Bridge, near Castle Park.
“I was scared – and I never get scared,” he said.
“I was at home. They called me over Facebook to say they were with Simone and she had collapsed.
“I got there in about 15 minutes. I found her in a very aggravated state.”
