Retaining water (edema) at your age 53 years old while going through pre-menopause is to get further evaluated by physician.
Immediate tests are highly recommended to understand why you are having edema:
- liver/kidney function test
- cardiac check up
- Doppler ultrasound of the blood vessels including lymphatic system
- lymphatic studies (MRI, ct-scan) to rule out lymphedema
As the swelling is progressing and noticed on your entire leg, throughout the day, I highly recommend to go to ER as immediate evaluation and specific treatment might be needed.
Wish fast recovery.