For many people with MS, the symptoms are invisible.
There's been occasions where strangers have asked Rachael to get up out of a seat on a train because they perceive her as young and healthy.
“Just because you can’t see MS, you can’t judge people because you have no idea what they go through every other day. It could be a great day, but the rest of the days could be difficult. No one knows what I’m going through unless I tell them."