Here's why women and younger people are having more side effects to Pfizer or Moderna vaccine

For 24 hours these were the side effects Irma Duran went through after her second Pfizer shot. "I had my shot at 10:30 in the morning and then at midnight that's when I woke up. I had a high fever and my bones... It felt like sand paper. Like someone was sanding my bones," said Duran. A University of California San Francisco expert says these side effects after the second COVID-19 shot are normal because the immune response to the second shot is stronger.