Your symptoms need prompt attention because they may be related to your condition or medicines. After Cerebral Venous Sinus Thrombosis, new or intermittent weakness on one side of the body can suggest a neurological issue, such as reduced blood flow or a new clot, while the blue spots on your skin are likely bruising, which is a known effect of blood thinners like Warfarin. Medicines like Phenytoin and Clobazam can also sometimes cause dizziness or imbalance, but usually not focal weakness. It is very important to get evaluated urgently, including checking your INR (blood thinning level) and possibly a repeat brain scan, to rule out complications like bleeding or recurrence of the clot. Until then, do not stop your medicines on your own, but seek immediate medical care, especially if the weakness persists, worsens, or is associated with speech or vision problems.