Be extremely, *extremely* cautious about stopping the ativan cold-turkey. Even if you're taking a very low dose, if you have been taking it for more than a few weeks it can be dangerous. Do a web search for Benzodiazepine Withdrawal Syndrome. Opiate breaks may make you feel like you're dying, but benzo breaks can actually kill. Since you stopped both meds at the same time, it could be one, the other, or both that is causing your weird feelings. It it were me, i would probably try a test of just stopping the hydro for a day or 2 if you can stand it while continuing as normal with the ativan and see how that feels. Then, do the opposite, take a 1 day break from the ativan and stay on the hydro and see if you feel any problems. At least this way you can somewhat determine which substance might be causing the problems, or whether it's both or neither. Just don't do that in a 2 or 3 day period. Try a break from hydro, then go back to the regular routine until you feel 'normal' again, THEN try a 1 day break from the ativan. With the hydro you don't have much more to worry abuot during the break than stomach problems at both ends, fever, cold-sweats, and other flu-like symptoms. Benzo w/d is a strange beast and the symptoms often don't seem to have anything at all to do with the drug of the lack of. If it's the ativan that's a problem then i'd recommend talking to your doc about how to safely get off of it, if that's what needs to be done. Beware though, because many docs don't seem to understand the dangers of benzodiazepine withdrawal in certain people. Poision Control told someone I know who stopped xanax cold-turkey that if it'd been 36 hours and he was still OK, then there was nothing to worry about. 2 days later he had a seizure while driving from the xanax W/D and nearly was killed. Please be careful.