A mum who was told her son's sore neck was actually a type of blood cancer has warned parents to 'follow their gut instinct'.
Louise Chessell, from Chester, said she noticed her son Jensen 'wasn't himself' but doctors thought he might have had an infection and gave him antibiotics.
However the three-year-old's symptoms began to get worse as he starting limping and falling over.
READ MORE: Teacher knocks through wall and finds 'something staring at him'
A blood test later confirmed that Jensen had acute lymphoblastic leukaemia (ALL), a type of blood cancer, Cheshire Live reports.
Louise fears that if she didn't 'push for answers' she could have went longer without a diagnosis for her son.
Jensen has now started his maintenance phase of chemotherapy which will last until 2023.
She said: "If they feel like something isn't right then just follow their gut instinct and push for more answers and tests. If I didn't push for answers and tests it could've gone on for a longer time with him being undiagnosed.
"Obviously nine times out of ten it's not going to be cancer really, but if you feel like your child's not very well."
The first signs of illness started to show back in December 2019, when Jensen 'wasn't himself.'
Louise said: "He started getting reoccurring ear infections, tonsillitis, he started limping, he was going pale. He just wasn't himself.
"He was bruising easily. He was falling over. We went to the doctors and they were putting it down to either viral or chest infection, ear infection, tonsillitis, them types of things.
There are three ways to get more involved with the Liverpool Echo - sign up now to all of them to get the hat trick!
* See all our our brilliant newsletters and sign up by clicking here
* Download our free app for iPhone or for Android to take the news with you
We're made up that you read the Echo - so want to offer you great opportunities to Complete The Set and get more involved now!
"He was on constant antibiotics and then one Thursday night he woke up at three in the morning and his neck was really sore and he was crying. He was two at the time, in April 2020.
"I felt all around his neck and he had lumps after lumps in it. I phoned my doctors on the Friday and said what I'd seen and they said it would be worst case scenario, but I asked for a blood test.
"We went for a blood test on the Monday and then within a couple of hours of him having his blood test to getting home Alder Hey had rang me and said things were up with his blood and we needed to go to the Countess of Chester Hospital.
"We got there and that's when they said he had leukaemia, blood cancer."
Louise now wants other parents to look out for symptoms that could lead to an early diagnosis.
She added: "Just look out for symptoms as well. Obviously bruising, paleness, lack of appetite, tiredness.
"They say that if you've got a couple of them just to get checked and follow your instincts. That's the main thing really. Just to follow what you feel and know that it does happen to a lot of people and it's more common than you think.
"With a childhood cancer diagnosis you feel like the world is over, but with all the treatment and things like genetic testing, the survival rate is a very high chance."