Thanks for your question.
The facts presented are previous "diffuse subarachnoid" (hemorrhage or thrombosis?), left transverse sinus thrombosis
, and your recent symptoms.
From these, I can deduce that you may have a tendency towards clot formation (though the reason for this is not quite apparent, from your story); and it is advisable to see a Hematologist
(with interest in Coagulation disorders) and he should be able to place you on blood thinners (anticoagulants), while he investigates the actual underlying cause(s) of the clotting tendency.
However, if the "diffuse subarachnoid" happens to be hemorrhage, he is likely to be much more cautious, and may not readily prescribe anticoagulants, because of the significant risk of a repeat bleed.
As concerning your recent symptoms, they may be related to a new clot, or an extension of the previous one. Whichever way, its still good to see a doctor, have some coagulation tests (INR, aPTT
, etc), possibly cranial CT/MRI
and have a definitive diagnosis.