question: I HAVE HAD AN AEORTIC BY PASS SURGERY ABOUT 20 YEAR AGO AND HAD SURGERIES TO CLEAR OUT MY CARATIOD ARTEIES 5 YEARS AGO. I WAS NOT HAVEING ANY PROBLEMS AFTER THE FIRST SURGERY BUT AFTER THE SECOND SURGERY THEIR WERE SOME DAMAGE TO THE FEMEARAL ARTERY. NOW I AM HAVING PROBLEMS WALKING DISTANCES MORE THAN A CITY BLOCK. tHE UPPER THIGHS BEGIN TO HAVE MUSCLE EXHAUSTION AFTER A FEW BLOCKS. if I STOP FOR few minutes I CAN CONTINUE TO WALK AGAIN FOR A SHORT PERIOD OF TIME AGAIN. WILL I SEE ANY IMPROVEMENT IF I TRY TO EXERCISE.