I woke up at 2 am this morning with my feet ankles and lower legs swollen and it has not gone away. what could it be?

Many causes: This completely depends on other medical and risk factors? Do you smoke? Do you have heart disease? Do you have congestive heart failure? Did you eat a lot of salty food yesterday? This question is more appropriate for health tap prime If you have any shortness of breath, pin in you legs or feet, redness or streaking, please go to the ER now