When i wake up early i have shortness of breath. if i get up during the night i almost faint & must sit on the ground for a few. 20 year old female?

Need to see Dr ASAP: The symptoms you are describing are of concern and you should see a physician ASAP. It's not unusual to feel slightly dizzy on getting out of bed in AM but your symptoms are severe and may indicate a low blood pressure condition or a heart problem such as a cardiac arrhythmia(heart rhythm disturbance). If you can't see your physician by tomorrow, I want you to go to the ER.