Your symptoms, especially nighttime chest and back pain, require urgent medical evaluation to rule out serious cardiac or gastrointestinal issues (like severe acid reflux) before starting any sleep aids. Do not self-medicate. Once physical causes are ruled out, your racing thoughts and insomnia likely stem from high stress or burnout. A doctor may then recommend: 1. Cognitive Behavioral Therapy for Insomnia (CBT-I) to manage racing thoughts. 2. Prescription medications: Short-term sleep aids or low-dose anti-anxiety medications, used strictly under medical supervision. 3. Sleep Hygiene: A dedicated wind-down routine after late shifts. Please prioritise seeing a physician promptly for an accurate diagnosis.