Amy Louise Collins, of Bramley Grove, was just eight months old when her parents Mandy and Peter discovered she had severe muscle weakness.
A series of tests revealed Amy was suffering from a rare condition, which means she cannot sit unsupported and has to be fed through a tube as she is too weak to eat normally.
Amy is now 20 months old and beginning to show signs of frustration because she cannot move around in the same way as other toddlers.
Her parents are desperate to buy an electric wheelchair to give her greater independence.
Amy's story has touched the hearts of many and a fund-raising campaign is now under way called The Amy Louise Appeal Fund, set up by her parents last month.
The wheelchair, which the NHS cannot provide, costs £7,000. So far, £500 has been raised and on Monday youngsters from Ascot Heath School boosted the coffers by a further £90 after holding a cake sale.
The school wanted to offer its support because the mother of Jessica Pye, who attends to school, is one of the fund's trustees. Amy's mother also attended the school as a child and lived in North Ascot until she married five years ago.
Over the next few months, Amy's mum and dad will be holding several events such as sponsored abseils and bike rides in a bid to help their "beautiful daughter" so she can "live her life to the full, just like any normal child".
Mrs Collins said: "Everyone has been so kind and wonderful and we've got lots of things lined up."
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