My mother had an almost identical episode - She had routine bloodwork performed at her wellness check-up with her PCP. She received a phone call the day after her appointment telling her to get to the ER right away and they will be expecting her. They looked for internal bleeding - found none. Because her red count was so low, she had developed a large blood clot and had to be put on blood thinners and was given blood transfusions, B12 etc. She had received her 2nd dose of the vaccine 6 weeks before.

When I was hospitalized for a different issue and my bloodwork came back low hemoglobin - the only new component was the COVID-19 Vaccine from Pfizer. For my mother and myself both to have the same issue when we haven't been together, been exposed to any like substance other than the vaccine, makes me a bit concerned that the vaccine may be harmful to some people.

They possibility that the vaccine is responsible needs to be seriously looked at.