I Have Notice When I Get Home From Work My

I have notice when I get home from work my left leg is slightly bigger than right . I have hypertension and had a stress test , ultrasound and MRI of heart muscle . The results were fine 2 yrs ago. I also have had the sciatica symptoms that comes and goes . My weight is 165 Ht 5'1 which is contributing to all this .
So this left leg swelling is new when leg elevated it goes down and start to swell gradually during the day . Doc was the diagnosis . Thank you email addresse lsuarez llpn @gmail.com