I would imagine suicidal ideation is a potential side effect. I took Ativan a few weeks back and my NP told me it was and to look out for it. I know your doctor is closed today, but do they have an on-call line you can call? Often you call the office line and then press a button to have an answering service page a doctor about the bad side effect you think you're having to your medication. Would this be a possibility?

If you feel you are a danger to yourself, please do go to get outside help from whatever source you feel most comfortable with (hotline, emergency room, etc.). I hope you feel better soon. ++