Hi @kbc. It’s understandable how some events can feel more than coincidental. From my research over the years, in the case of Covid vaccinations, there a few documented cases of people who developed thrombocytopenia, a decrease in platelet production. This can also happen with the measles, mumps and rubella vaccination.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400504/
The Covid vaccination hasn’t been shown to cause any genetic mutations such JAK2 or CALR which can lead to changes in blood production with disorder of the bone marrow called Myeloproliferative disorders or Myeloproliferative neoplasms.
https://www.healthline.com/health/cancer/myeloproliferative-disorders
Clearly your numbers after the vaccination are higher. Do you have a baseline of your platelet count prior to vaccinations?