Under-fire Melbourne midfielder Clayton Oliver has blamed ADHD medication, stress, a lack of sleep and strenuous exercise for his hospital visit earlier this month.

Reports that suggested Oliver was a sub-optimal preparer and engaged in questionable off-field activities arose ahead of the trade period, seeing the star Demon raised as a shock trade option.

However, after engaging in "robust conversations" with head coach Simon Goodwin, Demons footy boss Alan Richardson and his own management, Oliver remained a Demon, with the oldest club in the land knocking back what were considered to be genuine offers for the Mooroopna native's services.

Yet, before the exchange period had come to a close, Oliver was admitted to Footscray Hospital on October 11 after the 26-year-old underwent a CT Scan and an X-ray on the premises.

While the club has remained tight-lipped on the details of the incident, Oliver spoke exclusively to 7News on Tuesday, claiming it was a mixture of above-board elements that saw him require medical attention.

โ€œIt's been a little bit stressful. It usually doesn't get to me,โ€ Oliver said.

The three-time All-Australian claimed that he had suffered a head knock after exercising on a stationary bike.

โ€œI take medication for my ADHD. I've been talking to my doctors about that for a while. [I've] sort of been light-headed and [suffering from a] high heartrate; that sort of affects me a fair bit. I sort of fainted that day off the wattbike," he added.

Oliver also stated that he had collapsed that very same night at the residence of teammate, Joel Smith.

โ€œI was in bed, sleeping at Joel's, and got up to get a drink, and then the next thing I know, I was on the ground," he said.

Smith has since tested positive for cocaine, with the father-son draftee producing a dirty sample after being tested in-season.

Oliver revealed he would've been open to a trade had the Demons pushed for a move, but the star Demon has always wanted to remain in the red and blue.

"If they didn't want me (I would've been open to a trade)," Oliver said.

"Obviously I didn't want to leave. I love the boys and I love the club. I love 'Goody', he's always looked after me and had my back."

While Oliver has since been put on notice for his behaviour by the club, with powerbrokers expressing the four-time best and fairest winner needed to meet minimum internal standards, a frustrated Goodwin told SEN radio that he had not spoken to Smith.

Smith is expected to be banned for three months after post-season reporting stated that the 27-year-old had failed his urine test following Melbourne's Round 23 clash against Hawthorn at the MCG.