My 18 year old daughter has Covid. She’s had a mechanical valve for several years but had a stroke a year ago. As a result they increased her warfarin dose and added an aspirin daily. But the could not give her reassurance of not getting a blood clot again. I am trying to help her to not worry while she goes through Covid. But she keeps worrying about clots and no one has given her any reassurance about it. Any suggestions as to what I should say or do?