I was floored for three days with side-effects after having my first Covid jab and many of you have been in touch about your side-effects too. Why do some of us feel awful after the vaccine, while others barely notice anything? What does this say about our immune systems and how protected we will be against covid? We put your questions to Eleanor Riley, a professor of immunology and infectious disease at Edinburgh University. Our resident GP Margaret McCartney has been taking a look at the reports of blood clots after vaccination, and we speak to Victoria Male, a lecturer in reproductive immunology at Imperial College London, about the rules for vaccination in pregnant women. PRESENTER: James Gallagher PRODUCERS: Beth Eastwood & Geraldine Fitzgerald