DR AMIR Amir Khan has shared three blood clot symptoms recipients of the AstraZeneca vaccine jab should know about.
The warning comes as investigations continue into potential links between the AstraZeneca jab and blood clots.
Dr Khan appeared on Wednesday morning’s instalment of Good Morning Britain alongside hosts Adil Ray and Ranvir Singh.
Dr Amir said: "It is common to get minimal side effects after having the vaccine such as headaches, a temperature, fevers, chills, but if your headache persists beyond four days after having the vaccine, then you should seek medical help.
"Other symptoms include blurred vision and nausea, and then as time develops, if you do not get treatment, that can progress then to seizures and such.
"But in particular headaches, blurred vision, nausea, particularly after four days, is when you should seek medical help."
Despite the concerns, Professor Adam Finn, from the University of Bristol and a member of the JCVI, said it was vital to keep vaccines going as society opens up, in order to help stave off rising infection rates.
It comes as the Medicines and Healthcare products Regulatory Agency (MHRA) and the European Medicines Agency (EMA) are expected to give updates on their investigations into whether the Oxford/AstraZeneca vaccine is directly causing rare brain blood clots.
Some European countries have restricted the vaccine use in younger people following reports of low platelet counts and cerebral venous sinus thrombosis (CVST), a specific type of clot that prevents blood from draining from the brain.