There appears to be a row between Dr. Cartland and John Watt, that fellow that recently gained attention by speaking out on GBN to Rishi Sunak (see clip below).
https://twitter.com/CartlandDavid/status/1757810278677307655
A further tweet that Mr. Watt's heart injury occurred prior to his being vaxxed, albeit with a worsening condition after the vax; indicating the GBN event with John Watt was "staged":
Rishi Sunak V John Watt on GBNews was staged
The Government are in the process of a narrative shift on vaccine injuries- using John as a vehicle here
https://twitter.com/CartlandDavid/status/1758275809956044920
John Watt clip on GBNews: The vaccinated are getting desperate... be extra happy you didn't get the death VAXX...