i am 64 yr old women last year in may i have some diabeties ,for which i was taking gluconorm and galvas I FELT A LOT OF PAIN IN MY LEFT JAW AND WAS FEELING SICK GOT MY ECG DONE WHICH SHOWED PROBLEM SO I HAD ENGIOGRAPHY DONE NEXT DAY 4 STENTS WWERE INSERTED IN MY HEART ITS AYEAR AGO. i maintain sugar ok with2 each glucomet 500mg, 1 onglysia 5mg.and for heart , 1clavix a s 500mg, 1calcium 1amlogard 5mg,1lipicuremg daily. no blood pressure I WENT TO THE HILLS WHERE AIR PRESSURE IS LOWAT HEIGHTS , BUT WAS OK., SO CAN I JOIN SWSWIMMING LESSONS AND START SWIMMING