Ive been on Warfarin for 4 months after being diagnosed with a blood clot in my leg. Cause of clot is really unknown. I was on 13m and last week was told I no longer had to take it because my levels have been high. I stopped taking the warfarin and my side affects since starting it has been the following. Joint pain in my hip and arms, swelling and retaining fluid, sharp pains that jolt thru the leg randomly, experienced some nausea and dizziness the first few days after not taking the drug. since Ive stopped the warfarin 5 days ago it feels like the clot is returning in my leg. Is this possible?