Any head injury — including concussion — can cause symptoms that last for years after the injury. Up to 30% of post-concussion patients experience symptoms beyond the expected three-month recovery window. Other types of brain injury, such as severe traumatic brain injury (TBI), transient ischemic attack (TIA), certain viral or bacterial illnesses, carbon monoxide poisoning, surgery, and chemical exposure can result in lingering symptoms, too.
If you’ve ever felt like you were suffering alone with a traumatic brain injury (TBI), you may find it reassuring to learn you’re definitely not alone.
When people think of concussion symptoms, they often think of the obvious ones: headaches, drowsiness, fogginess. What they don’t expect are gastrointestinal issues.
If you’ve experienced a concussion or traumatic brain injury, you may already know that a bewildering array of symptoms can occur days, months, and even years after the injury.
Severe traumatic brain injury (TBI), concussion (mild traumatic brain injury or mTBI), and other head trauma can cause high blood pressure, low blood pressure, and other circulatory system changes. Head injury may lead to dysfunction in the autonomic nervous system (a condition known as dysautonomia), which in turn can cause blood pressure dysfunction and other symptoms to persist for months or years after the injury. Some patients experience a particular type of dysautonomia known as postural orthostatic tachycardia syndrome (POTS), which we discuss further in the post.
Perhaps this sounds familiar: You wake up from a relaxing nap expecting to feel refreshed, but instead, your heart is pounding for no reason. Or you stand up after a few hours on the couch and feel lightheaded and unstable. Maybe your resting heart rate is now 90, even though it used to be 65.