“The inside of my left arm goes numb. So I don’t know what to do. I have got this next week off to assess what I need to go forward.”
“But then at the same time if you are not capable of playing at your best, why should you play. It’s a Catch-22.”
However, the 28-year-old was never in contention for a first major victory since the 2014 US PGA at Valhalla and completed a closing 68 before the final groups teed off in round four.
“I feel like I’m capable of playing well enough to give myself a chance in it,” McIlroy said of the FedEx Cup. “At the same time, April is a long way away. That’s the next big thing on my radar.
McIlroy began the week 43rd in the FedEx Cup rankings and needs to be in the top 30 to qualify for the season-ending Tour Championship in late September.