A rapid heart rate is a hallmark symptom of POTS. The heart rate may increase by at least 30 beats per minute (or reach a heart rate of over 120 beats per minute) within 10 minutes of standing up or assuming an upright posture.
Symptoms that occur when standing up or being in an upright position. These may include lightheadedness, dizziness, feeling faint, or a sensation of blood pooling in the lower extremities.
Awareness of the heartbeat, irregular heart rhythms, or a pounding sensation in the chest
Difficulty with physical exertion, leading to increased heart rate, fatigue, and sometimes a significant decline in overall function.
Brain fog, difficulty concentrating or thinking clearly, memory problems, anxiety, and depression.
Nausea, bloating, abdominal pain, and changes in bowel habits.
Frequent headaches, including migraines, are commonly reported by individuals with POTS.
Poor sleep quality, insomnia, or excessive daytime sleepiness individuals with POTS
Fluctuations in body temperature, intolerance to heat or cold, excessive sweating, or a decreased ability to sweat.