Record the first changes and the return to ordinary demands before “mild” becomes shorthand for “nothing happened.”

Describe the event precisely: head contact, body impact, acceleration or deceleration, rotation, fall, object, blast, sports play, or repeated impacts. Preserve scene, vehicle or equipment, helmet or protective gear, video, electronic data, and witness vantage. Record immediate confusion, blank stare, slow response, repeated questions, memory gap, imbalance, speech change, headache, nausea, light or noise sensitivity, vision change, fatigue, irritability, or other observed change with time and exact words.

Collect emergency, urgent-care, primary-care, sports-medicine, neurology, and other clinical records. Note when the person first reported each symptom and what instructions were given. A person may not recognize or report symptoms immediately, especially during stress or with other injuries. Delayed reporting must be explained rather than assumed. Preserve negative findings and ordinary activities as well as complaints.

Routine imaging may be obtained to evaluate structural concerns, and a normal result can still be important. It should not be misrepresented as a test that was designed to decide every concussion question. Conversely, the absence of imaging does not prove severity. A qualified provider should apply clinical criteria, assess warning signs and alternatives, and explain the basis for diagnosis and management.

Document the provider's instructions and actual progression. For work: screen time, meetings, multitasking, deadlines, physical activity, noise, driving, breaks, reduced hours, errors, and supervisor response. For school: attendance, reading, homework, testing, light or noise, nurse visits, accommodations, teacher observations, and activity restrictions. The Centers for Disease Control and Prevention recommends individualized return-to-activity planning. It is clinical guidance, not a universal civil deadline or proof rule.

Track daily activity with specific examples rather than a symptom score alone. Note when headache, dizziness, fatigue, visual symptoms, concentration, memory, irritability, or sleep problems appear, what activity preceded them, how long recovery took, and whether the pattern changed. Avoid both forced inactivity and unsupervised progression based on general legal information. Treatment and return decisions belong to the patient's healthcare professional.

Driving deserves separate attention because it combines vision, attention, processing, judgment, reaction, movement, and tolerance for motion. Record provider advice, actual attempts, symptoms, near misses, restrictions, transportation alternatives, and work consequences. A person's choice not to drive immediately after injury may be prudent. It should not be converted into a diagnosis or permanent restriction without medical support.

Build a pre-event record for prior concussion, migraine, headache, attention or learning issue, anxiety, depression, post-traumatic stress, sleep problems, vision, vestibular symptoms, pain, medication, substance use, and other medical conditions. Then compare symptom type, frequency, severity, triggers, treatment, and function before and after. A preexisting condition can be aggravated; it should neither be hidden nor used as an automatic explanation.

Coordinate disciplines. Primary care or neurology may address diagnosis and medical differential; vestibular and vision specialists, relevant symptoms. Neuropsychology, cognition and validity; mental-health professionals, psychological conditions; pain and sleep providers, contributors. Experts should not treat overlapping symptoms as proof of malingering or timing as traumatic causation.

Persistent symptoms require current medical explanation and prognosis. Show follow-up, adherence, barriers, treatment response, changing restrictions, and whether another condition explains part of the course. Recovery varies. Group timelines may guide clinical questions but do not set litigation cutoffs or guarantee individual outcomes.

Preserve underlying-event evidence: driver conduct, property condition, work process, product, sports or school activity, assault, professional care, or public action. Identify responsible parties and legal systems. Workers' compensation, Governmental Tort Claims Act procedure, product law, school or sports immunity, Tribal or federal issues, and criminal proceedings may change procedure without deciding medical causation.

Prove work or school loss with records, not generic symptoms. Obtain attendance, leave, hours, errors, pace, testing, grades, accommodations, performance, earnings, and return attempts. Explain privacy and relevance. Temporary adjustments do not establish permanent loss; partial return does not prove full recovery.

Future care and damages require qualified support. Identify follow-up, therapy, medication, testing, and restrictions with probability and duration. Separate physical, cognitive, emotional, wage, and household effects to avoid duplication. Review Oklahoma comparative negligence, mitigation, causation, expert, and damages law against actual evidence.