Pulmonary Embolism Support Group
By far the most common form of pulmonary embolism is a thromboembolism, which occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs. Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death.
I have increased my water intake and I haven't been having the fainting spells or dizziness as much lately until last night when I nearly passed out again. But I aslo do have some major stomach issues that haven't been figured out yet which may be causing the fainting.
Please call your doctor and get their advie too, they may want you to go in and get checked.