Hi all, I just started retaining water in my feet on Sunday.....started on my left foot and now to my right. They are pretty swollen. Now my legs also hurt & knees. I went to Emergency care (not the ER) and they took my blood, did and ekg - ekg was fine.....now they want me to go back and have an ultrasound done on them to check for other stuff. I am pretty concerned. Does this happen to any of you.....even around your period time, heat, meds etc? Thanks for your input!