Fatigue (severe) Absence seizures Pressure in head Spinning sensation Rapid heart rate Chest pain (left side under breast) 16 years old. Please help?

Neurologist. A neurologist is most likely regulating your antiseizure medication and could address the question of possible side effects of fatigue,dizziness and fast heart rates. The chest discomfort may be coming from your rib cage rather than the lungs or heart but your primary care physician can check you for that as well as check your heart rate and rhythm.