Former Formula 1 driver Rubens Barrichello has reassured fans he is "feeling great" after revealing he was in hospital following a health scare earlier this week.

Best known as the teammate to Michael Schumacher at Ferrari in the early 2000's, the Brazilian retired from the sport in 2011 following further stints with Honda, Brawn and Willams.

One of the most popular drivers in his time, in recent years he has become a pundit and still has a large social media audience and it was that which triggered Barrichello to announce his situation.

“I can see everyone is sending me messages and everyone is worried," he said in a video on Instagram, "so I decided to tell you.

"On Saturday I decided to wake up and have a shower and I felt a terrible headache, luckily my wife was there and she called a friend doctor who took me to the hospital, they took really good care of me.

“I had a small problem on a vein, but I want to tell you that I am feeling great."

Barrichello remains in hospital recovering as further tests are carried out, but the 11-time Grand Prix winner is in high spirits adding: "The difficulties in life are the ones who show us how to grow and how to be better.

“I am so thankful, thank god for the opportunity and soon I will be back on the race track. So good to speak to you guys.”