The 28-year-old from Northern Ireland, lacking only a victory at the Masters to complete a career Grand Slam, has bought the former home of South African four-time major victor Ernie Els at the nearby Bear's Club.
"I have a flat T-wave and I'll have to get an echo (cardiogram) on my heart every six months and an MRI scan every year". He says doctors told him it was caused by a viral infection he suffered in China 18 months ago.
He didn't sound overly concerned about the condition, describing it as an "irregularity" that he needs to "stay on top of".
"The rib's fine, no problems whatsoever - I had an MRI scan on my thoracic spine and all was OK", McIlroy told the Telegraph. "I just crave to be in that position again". I don't fear any of them. I've beaten them before.
After a winless 2017, McIlroy has slipped to 11th in the world rankings and insists his focus is on winning in the months ahead and is confident he will be bounce back as the world's best golfer.
But that's where the injury woes began, a fractured rib that was diagnosed the day after that tournament. "I don't care about the world rankings".
"I don't judge it like that", McIlroy said. "I knew within myself that I couldn't compete at the end of last season because I hadn't done the work beforehand, and that's because I hadn't been fit enough and if you can't practice, you can't compete". "Everyone knows I haven't won one in the last three years and that is a worry, yeah".
"I touched upon a recent finding from a routine health and wellness check".
The Abu Dhabi HSBC Championship, and and event he is yet to win after previously finishing runner-up, will be the first of eight events for the Florida-based McIlroy leading up to April's Masters at Augusta National.