It only happens when there is a pathology in the eye vessels or retina (e.g dislocation, tear & so on).
It is a normal protocol to have an ophthalmic surgeon gives a clean bill as far as possible bleeding from eyes.Secondly any bleeding disorder is ruled out first.
No cinnamon, clove are not blood as our tablets e.g No Clot, warfarin, disprin & so on.
If you have low bp, consult your doctor, mine is 90/60 no problem.Too much of book picture is knowledge is not admissible. BP at which you comfortable is better.
Yes, Blood thinners are not so horrifying as is assumed, they are given in specialized situation under strict medical advise, so no need to worry. They can be with drawn & counter acted any time e.g 48 hours before menses cycle and so on.
Blood thinners lower BP or maintain normal BP if it is normal.
Hope it convinced you.
I am a doctor.