Probably every drug has risks, many higher than the 1:1,000,000 reported for AZ/J&J. It's always a balance between the risk untreated vs. treated - many cancer drugs will kill you, but slower than they kill the cancer. Contraceptives have various issues, but their "social good" is deemed worthwhile. I've read that they are doing gene analysis to try and determine why these cases appear - is it gender, age, cross-reac…
I know that kind of fear personally, I’m on meds with risks orders of magnitude worse than that vaccines and that have been (and still is) a struggle for me. I can do the math, and I understand the risks, but taking an active risk is just hard.