An inquest heard that a mother died after a bleed on her brain was caused by the COVID-19 vaccine.
After the dose of the vaccine, Kim began to experience horrible headaches eight days later.
She died in the early hours of March 24, 2021.
The inquest at Doncaster Coroner's Court heard that she went to the hospital's ER two days before she died, but left without being seen.
By the time she was seen, there would have been no way to help her, the Coroner said.
The link between the COVID-19 jab and VITT was not known at the time of Lockwood's death, but medical advances meant the condition is now better understood.
The family should have been listened to, and Kim's pain wasn't appropriately managed.
—BBC Radio Sheffield (@BBCSheffield) March 16, 2022
According to the report, Wayne Merrill said that his daughter's last words were that her headaches were killing her.
A family tribute to the mother of two sons was read at the inquest.
The family said that she had died in agony.
The government data shows that the reaction to COVID-19 was very rare.
According to the UK Government, there have been 437 reported cases of blood clot and 78 deaths after an estimated 24.9 million first and second doses of the AstraZeneca vaccine. It equates to less than one percent of people taking the vaccine having a blood clot and less than one percent having fatal effects.
The single most effective way to reduce deaths and severe illness from COVID-19 is still vaccination, according to the governor.
People who had COVID-19 were eight times more likely to have a blood clot on their brain than people who did not have COVID-19.
According to a comparison of two large data sets by experts at the University of Oxford, people who got sick from COVID-19 were more likely to have clefts.
In the UK, 52.7 million people have had their first dose of the vaccine, with 49.2 million having had their second, according to Government data.
More than 38 million people have had a third or booster dose.