You do not have to hit your head, and you do not have to lose consciousness, to sustain a concussion. Rapid acceleration–deceleration alone is enough. That is why so many mild traumatic brain injuries after low-speed collisions go unrecognized for weeks.
The classic first-day symptoms — headache, nausea, sensitivity to light — are the ones people report. The ones that get dismissed usually appear on day three to day ten, once someone returns to work, screens, or driving.
CT and standard MRI look for bleeding and structural damage. Concussion is a functional injury — a metabolic and network disruption — and is typically invisible on routine imaging. A normal scan means no bleed; it does not mean no brain injury.
Structured symptom inventories, oculomotor and vestibular testing, balance assessment, cognitive screening, and cervical examination — because neck injury and concussion frequently coexist and produce overlapping symptoms.
Some presentations need an emergency department, not a clinic appointment.
Most people improve substantially within four weeks with graded return to activity — complete rest beyond the first 48 hours actually slows recovery. Persistent symptoms past a month warrant targeted vestibular, visual, or cognitive rehabilitation rather than more waiting.
No head strike and a clean CT do not exclude concussion. Track cognitive, vestibular, and sleep symptoms for two weeks and get assessed if they persist or worsen.
Our health practitioners assess post-accident injuries in Texas and Florida, with telehealth available.
