The common symptoms may include:

• Shortness of breath during activity
• Fatigue and weakness
• Dizziness and fainting spells
• Swelling in the legs or ankles
• Lightheadedness during activity
• Chest pain, particularly during exercise
  
• Abdominal swelling or discomfort

The symptoms of pulmonary hypertension are similar to those of other more common heart and lung problems. For this reason, diagnosis for pulmonary hypertension can be challenging and patients and doctors might overlook the condition until symptoms become severe. Further investigation is needed for an accurate diagnosis.