Carbon monoxide poisoning can be fatal, symptoms include headache, dizziness, nausea, and vomiting. Torticollis are spasms of the neck muscles causing neck pain and stiffness, tilted head, and more. Cervical spinal stenosis is a spinal condition causing pain, weakness, or numbness in the arms, legs, or neck.
Symptoms of DTs, which usually peak at 5 days, include: 1  Disorientation, confusion, and severe anxiety. 2  Hallucinations (primarily visual) which cannot be distinguished from reality. 3  Profuse sweating. 4  Seizures. High blood pressure.  Racing and irregular 1  heartbeat. Severe tremors.  Low-grade fever.
As the drug leaves the system, brain processes enter a state of imbalance, which users experience as opiate withdrawal syndrome. The codeine withdrawal period begins with the most severe or acute symptoms, which typically start anywhere from 12 to 36 hours after the last dose. Symptoms commonly experienced include: 1  Restlessness.  Stomach cramps.