Charlie is currently in Marbs with the rest of the TOWIE gang but isn't feeling himself after being diagnosed with a lung infection.
Last night, Charlie shared a selfie from his sick bed and, judging by the medical tape and cotton wool on his arm, it appears he has had a blood test.
Alongside the photograph, Charlie told his Twitter followers: "#Bronchitis #Selfie in #Marbs #Towim."
Charlie's cousin and former TOWIE co-star, Frankie Essex, was quick to send get well wishes from back in the UK. She said: "Oh Char what a mare!! Hope you're okay babe x."
Replying to her message, Charlie tweeted back: "I know.. Hopefully get better before we come back!"
Charlie and his TOWIE co-stars, including his girlfriend Ferne McCann, touched down in Marbella last Saturday (7 June) and have been busy filming for the new series.
Earlier this week, Charlie and Ferne - who have recently reunited - were seen sharing a romantic moment as they relaxed together in the Spanish sunshine.
Get well soon, Charlie!