In 2020, Marion Jones was living in Boston working for a green energy company when she decided it was time to see a doctor. For about a year, she had been experiencing nagging health problems.

“For me, it started to show up as this burning sensation in various parts of my body. It would maybe last for 10 seconds, and then it would migrate to another part of my body,” she said.

When she began to have excruciating back pain, she made an appointment.

The first doctor she saw couldn’t explain the symptoms, but a second doctor suspected multiple sclerosis, or MS. An MRI quickly ruled MS out, and Jones returned to her normal life.

But after developing a headache that lasted for several months, a friend convinced her to visit the emergency room. A doctor prescribed a muscle relaxer and released her, but just 72-hours later, Jones found herself back in the hospital - this time with difficulty moving the right side of her body.