Twice I attempted suicide last year on Ativan

Twice I attempted suicide last year on Ativan. I took 10 mg first, was monitored and discharged after 12 hours. Was high for days.

The second time I took 30 mg. Ex found me sometime later and had EMS give me charcoal. At the hospital I was apparently very disoriented and hard top arose, respirations 33, pulse 120, bp 84/50. Put me on oxygen at one point.

Both times I was urine tested and second time I was also blood tested. All came back negative, despite my symptoms of OD.

Even meds I take as needed came back negative.

Any ideas?