Popularly known as 'Awuche', which means "let's go", Sulemana is physically unfit.
'Awuche' who is 9ft 6 inches has been diagnosed with gigantism a few years ago was attending a monthly appointment to deal with the complications of living as a giant when he was asked to stand straight against a measuring rod.
He said he was not surprised to hear he was taller, given he has never stopped growing - but it caused consternation for the staff, who were not prepared for such a scenario.
The duty nurse called out to her colleague, who in turn called out to another for help. Before long a group of nurses and health assistants gathered to solve the puzzle of determining his height.
One suggested they find a pole and use it as an extension above their stick to measure his height - and this is how they arrived at their estimate.
For each hospital visit, he must still raise about $50 (£40).
His health problems eventually forced him to return to his home village six years ago and give up his dreams of becoming a driver.
"I was planning to go to driving school, but even when I shift the seat back, I can't hold the steering wheel… I can't stretch my leg because my knee will knock the wheel," he said.
He is now living with his brother - and gets by after setting up a small business selling mobile phone credits.