The actor had to cut short a recent taped appearance on Michael Rosenbaum's "Inside of You" podcast while discussing mental health, and has now explained on Twitter what led to his sudden walk-out.
"I did Rosey's podcast after Arrow ended," he writes. "We had to cut it short because I had a full on panic attack. It wasn't pretty. I came back a few weeks ago to chat about it."
"I was in a really bad spot and I'm happy to report that I'm doing much better. Listen please."
Meanwhile, an online description of the episode reads: "Coming off the ending of his 8 year tenure with "Arrow", Stephen opens up a lot about being at his wits' end and being completely burnt out mentally, physically, and emotionally. This all leads to Stephen suffering a panic attack mid show... leaving in an unprecedented manner... and then returning with enough bravery to re-address his current mental health."