Robbie Williams has opened up on his secret struggle in an extremely candid post, which left him feeling "subnormal".
The former Take That star, 49, took to his Instagram to speak openly about his experiences with dyslexia and dyscalculia.
He discovered he had the learning difficulty in 2020, with his eldest daughter Teddy also living with the condition.
Dyslexia is a learning difficulty that primarily affects the skills involved in accurate and fluent word reading and spelling.
While dyscalculia is a specific and persistent difficulty in understanding numbers which can lead to a range of difficulties with mathematics.
Taking to his social media, Robbie posted a picture that read "When I was told I was dyslexic I was like what f**k the?".
In his caption the Candy hitmaker wrote: "I actually have dyscalculia too . Phone numbers give me anxiety *no joke .
"If they’re not spaced out I can’t read them. A month or so ago I was with some new friends and I offered to pay for lunch.
"There was an option to leave a 15% tip 20% tip or 25 %. None of which I could work out."
He added: "I started to sweat. Got the sum wrong. Scribbled it out and in the end I had to ask for help. My new friends were very cool about it.
"I didn’t feel embarrassed."
The singer continued: "My hand writing is atrocious. These fonts I'm doing are mine. I feel like I haven't created something beautiful with it But I have figured out how to do something interesting.
"Something maybe ‘arty’ it makes me happy. After all, my own judgements about my handwriting haven't been the kindest.
"I read well. But my spelling is shocking. I can’t figure out which way D’s go and which way B’s go. No matter how many times I write them.
"There are so many easy words that when it comes to spelling remain beyond me. Because of this for the longest time I’ve felt like I’m intellectually/academically Subnormal."
Robbie went on to explain it damaged his self esteem and despite enjoying school, "when it came to exams or lessons there was no ‘’win’’ for me".
He added: "My grammar remains jumbled. I don’t know when a sentence ends or when to use a comma. Or when a paragraph ends either.
"But I will say this …If there is anyone suffering with stress right now about you’re GCSE’s and you’ve been told this is the most important year of your life that defines you forever.
"Its B******S ….It actually should be deemed abusive for a young mind …"
"You are astonishing .You just don’t know yet .If you do fail .Don’t worry .you have been given the 'power of Nowt' …
"The 'power of Nowt is VERY powerful and a gift .Because you HAVE to figure it out and you will . Im surrounded by incredibly successful people and most of them are like you and I .
"What we lack has given us a superpower …go find yours .x *NOWT in northern English means…nothing."
Recently opening up about his ten-year-old daughter's condition, Robbie said: "My older daughter suffers from dyslexia, just like me.
"When I was growing up in Stoke-on-Trent in the Eighties, however, dyslexia was still a completely unknown diagnosis. I have to explain to her what dyslexia is, what it means for people, how to deal with it. And that if you suffer from it, you're not automatically stupid," he told Galore magazine.
