passing out,3 times in 8 days,last time, hit my head on corner of computer desk,cut eye ball,lid, nose,face, etc. tryed to reach my card doc at e.r.,still no call back after three days,should i be taking a nitro tab after i pass out? I've had 2 strokes in10/09, a heart attack 8 months ago, a hip replacement 2 months ago. I have high bld pressure,4 restricted arteris,and doc has me listed to take some tilt test in 8 weeks,and says i may need a pace maker if the results come back neg. will i not last that long because of the passing out,i was out for 45 minutes on 15th and 35 minutes, the last time,2 days ago,if i could get the doc to call back i'd ask to move the test up sooner,or should i just wait, and hope i feel better?