Labour’s panic over Reform deepened last night amid fears that big businesses are following voters and increasingly supporting Nigel Farage’s party.

One Cabinet minister confessed to The Mail on Sunday that many leading companies will now attend Reform’s high-profile autumn conference in Birmingham.

It came as Mr Farage insisted yesterday that his own health was fine, dismissing talk that his lifestyle and relentless schedule were taking their toll, and blaming suggestions to the contrary on rumours spread by Labour and Tory rivals ‘because it’s the last card they’ve got’.

He joked that he doubted the British Medical Association ‘would hold me up as a pin-up boy’ but declared: ‘I’m feeling good.’ However, he later admitted that he was trying to ‘moderate with age’.

All the parties are currently gearing up for the autumn conference season, with Labour’s gathering in Liverpool expected to dwarf the Conservative event in Manchester.