How Long Do Lorazapam Withdrawal Side Effects Persist?

I stopped taking Lorazapam 10 days ago . I stopped taking the benzo cold turkey and was fine for the first week or so now I feel like I m going to seize all day long! I was taking .05 mg 2x p/ day for about 6 months when will I begin to feel normal again? I m 66 yrs old and weigh about 230 lbs. I have a 6 frame.