Emmerdale viewers were updated on Zak Dingle's health during Wednesday's episode (September 25), as his story unfolded alongside Belle Dingle's (Eden Taylor-Draper) struggle with Tom's abusive behaviour.
Belle, after discovering a hidden camera planted by estranged husband Tom (James Chase), confided in Lydia (Karen Blick) and resolved to go to the authorities for help.
While discussing her situation with Chas (Lucy Pargeter) at The Woolpack, their conversation was interrupted by Cain Dingle (Jeff Hordley), who was freshly off the phone with Debbie.
He revealed concerns about their father Zak's health: "It's just dad, he's not well and doing her head in", indicating Zak's condition.
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