lasix/lisinopril

I TAKE BOTH LASIZ AND LISINOPRIL, MY LEGS BOTH ARE SERIOUS SWELL, (VERY HARD FEELING) I DON'T SLEEP OVER HALF HOUR AT A TIME AT NIGHT, I HAVE A FEELING OF LIGHT HEADNESS. I TAKE LASIX ONCE A DAY, AND GO ONLY TWICE A DAY TO THE BATHROOM. I DRINK 8 GLASSES OF WATER A DAY. I AM TRIED,CAN'T WALK MORE THEN 10 FEET AT A TIME. I HAVE HAD A STRESS TEST ON MY HEART ALL IS FIND. I HAVE SPRINTS ONE IN EACH LEG. I COULD GO ON BUT MY TRIED . I DON'T KNOW IF TAKING THE TWO MEDICINE TOGETHER IS MY PROBLEM. MY DOCTOR CAN'T GIVE ME A ANSWER THANKS SUE IN CRAWFORDVILLE FLORIDA