I got the J&J vaccine—should I be worried? What should I be looking for?
This complication seems to happen a median of 9 days after vaccination—so it’s not an immediate side effect. And none of the cases occurred after 3 weeks of vaccination.
Symptoms include: severe headache, difficulty breathing, abdominal pain, swelling in the legs and easy bruising. If you have had these symptoms and recently (within the last 3 weeks) had the J&J vaccine, you should contact your doctor or go to an emergency room to be evaluated.