Tilli suffered a stroke at school just two weeks after her fifth birth.
Her parents Carly Brown, Zak Cremin, said that there were no warning signs and that she went in to her class in Lowestoft (Suffolk) as usual.
Carly states, "It broke me. I thought that I was going to lose it."
Family members believed strokes were only for the elderly. According to The Stroke Association, strokes can happen to anyone and affect any age. In fact, 400 children suffer from them every year in the UK.
Carly was still wearing her pajamas while doing housework when the school called on 5 April. They said that an ambulance was on its way and she needed to be there immediately.
She says, "I was in shock." They said that Tilli had suffered a seizure. I quickly put on my coat and ran to school. It was horrible to see her lying there in pain in her teacher's arms when I arrived.
Tilli was walking and talking well when she first arrived at James Paget University Hospital, Gorleston, Norfolk. Zak said that Tilli was "walking properly and talking properly" when she first arrived at James Paget University Hospital in Gorleston, Norfolk.
She had another stroke 10 minutes later.
He adds that the first stroke at school was the start of a stroke. The second one was at the hospital. "The second was very bad. Her face was completely gone, and she couldn't speak.
"It scared my but we had to stay calm for Tilli, because she didn’t know what was happening."
Tilli, who is the sister of three brothers and one sister, was taken to Addenbrooke's Hospital, Cambridge, where she remained for a whole week.
She was on high-dose steroids for three weeks and is now taking blood thinners every evening.
According to doctors, her stroke was caused in part by vasculitis (inflammation of blood vessels).
Tilli was able to return to school for as much as three hours per day. Her parents noticed a huge change in Tilli, who was previously "very forward" in her learning and development before the stroke.
Carly states that it has been difficult because, although she is still mentally intelligent, she still has her intelligence. It's almost like she's a 3-year-old again."
Tilli has had tantrums at the shops when she was unable to find the item she wanted. She "throws stuff all over the place, pulls my hair, and hits me."
She says, "There is a huge frustration that I feel because of what has happened."
Tilli's speech has returned and she can now walk but she drags her right leg. She can also grab her hand with her left hand but cannot open it again.
She just began four weeks of physiotherapy in Manchester, which is more than 200 miles (322 km) from her home.
The treatment will take place at a Surrey specialist children's hospital for eight weeks.
Her parents said that Tilli was their "just want back" and that they hope the three months of treatment (some of which they have funded) will help her get back on track.
She will receive physiotherapy, speech therapy, and counselling. Every six months, she will also have MRI (magnetic radiation imaging) scans.
Her parents were told by doctors that Tilli is responsible for her recovery.
Carly states, "Fortunately for us, she is so determined. As soon as she has something in her mind, she does it. And I'm so glad she is like this." It's going to take a long time. "I just want her to be better. I would do anything for her."
The determined youngster, who was just learning to ride a bicycle without stabilisers has mastered writing with her left hand.
Her dad is excited for her to re-learn other skills.
He says, "I'm going get the pleasure of teaching her how bike riding is again, and seeing her face once she learns to do it again, the joy of doing it again. That'll be nice."
"She can't do major things that she did before, and I look forward to seeing her do them again."
Katy Rothwell is the Stroke Association's head of experience and developmental. She says that a stroke in childhood can have a profound impact on a child's life and that the effects for each family member are unique.
She says, "There is hope. With help and support children and their family can rebuild their lives following stroke."
"Usually, the stroke recovery is the fastest. However, it can take months or even years to recover. Although it takes hard work and time, rehabilitation therapies are essential. However, life after stroke can be possible.
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