I am sure you are correct in assessing the risks based on your individual circumstances.
This is an interesting article which gives perspective.
https://www.dailymail.co.uk/news/article-9422571/Coronavirus-Germanys-brain-blood-clots-AstraZeneca-vaccination-not-seen-nations.htmlA previous article spoke about it being speculated due to a genetic condition for which a screening test is available, and then appropriate anti clotting agents could be given.
Which is why regulators are saying there is no proven link.
I understand clotting issues is a major factor with Covid infection.
If you believe you are unable to be vaccinated with that one, then another may be more appropriate.
However, if the population does not get vaccinated the chances of you getting Covid at some time will be much higher, and the risks of clotting disorders would be significantly greater.