I M 60 YRS OLD,SUFFERING FOM DIABITIES SINCE LAST 5

I M 60 YRS OLD,SUFFERING FOM DIABITIES SINCE LAST 5 YRS,AND IS UNDER CONTROL,RECENTLY I HAVE STATETED EVERY DAY CYCLING ON ROAD,FOR DAILY 90 MINUTES EVERYDAY SINCE LAST 5 MONTHS ,MY BODY WEIGHT IS 90KG,HEIGHT 5F3INCHES ,BEFORE CYCLING I USED TO WALK FOR30MINUTES+30MINUTUES PLAY BADMINTON,
I TAKE OBIMET GX1 FOR EVERY LUNCHAND DINNER ,AND ONE MULTIVITAMIN NAME COBADEX ON EVERYDAY WITHOUT FAIL.
ALSO I TAKE ON TAB EVERY DAY AMLONG A FOR HIGH BLOOD PRESSURE
MY QUESTION I HAVE STATRTED LOOSING WEIGHT 2 KG/MONTH ,SHULD I CHANGE MEDICATION ,OR CONTINUE,MU EMAIL YYYY@YYYY