I am 75 years old 17 years, for triple vessel disease, CABG done; in 2005, angiography and three stents were put in LCX; Again, three months back, one more stent was placed; still lesion 50% in RCA; I am on Agizem cd 90mg,Clopiodrgil 175mg;Ecospirin150mg; Ranizex500 twice--in the morning and night; Silodal8mg; Aztor40 before bed time. Recently on three occasions---I experinced some breathing difficulty--suffocation,pulse down, which lasted three to four hous. Is this an allergic manifestation or side effect? Please advise me. vb chinnam