In case anyone is interested - I actually developed a very long, 22 cm clot all up my arm after my 2nd Pfizer vaccine shot. I had done an IV vitamin C infusion that morning in that arm and it clotted from 2 cm below the infusion site all the way up to the top of my shoulder (infused in the normal elbow vein people use for blood tests etc).
I have been on 4 mg enoxaparin injections daily, and taking a lot of rutin (500 mg 3x daily), bromelain (1-2 times daily, sorry forgot the dose) and serrapeptase (120 000 SPUs) on most days to try and resolve it.
It is still not 100 % gone after nearly 7 weeks. I have been in a terrible crash for around half of this time, and it doesn't seem like the supplements or anticoagulant did anything to help my ME - unless I formed a lot of microclots that have been improving over the weeks? But I doubt it somehow.. Anyway the root dysfunction has not been touched by this drug/supplement combo. It seems like apheresis might indeed be necessary, if there are microclots present in all ME sufferers.
FYI, when not crashed, rutin gives me a little bit of improved brain clarity (not when this crashed though), and bromelain improves my IBS, but I don't notice anything else from them.