I had a similar problem (but opposite in a way) a few years back I got the pains the feverish feeling so off to the doctors, possible heart attack, so into hospital and on all the standard heart meds. after a week they had ruled out heart attack but couldn't be sure as I had had the raised levels of something or other that indicates the heart has been working too hard, as one of the things they put me on had been IV antibiotics, it transpired that this was what had stopped all the problems as I had had an infection - myocarditis - the muscle around the heart gets an infection and squeezes the heart (giving all the symptoms of a heart attack, and if untreated can be just as deadly) now they kept me on all the meds and would not let me home as I now had a different problem, a blood pressure of 80/50 - every time they took it the machine would have a spasm and start shrieking its alarm.
finally they sent me home. for a few days I could not bend over, or stand up from a chair without crashing straight over in a faint. so I voluntarily stopped taking the blood pressure pills, ah better - back to my normal low blood pressure.
a few weeks later they did an angiogram, just to be sure.
that was an experience, the camera up through the arteries from the groin, the nurse who tried to push her thumb through my leg for 10 minutes after I came out of the room to allow the arteries to clot and start knitting, plus sitting not moving for the next hour, after that the doctor came out, he had a beaming smile on his face when he got to me, it seems he almost never had good news for patients, but he let me know my arteries were in perfect condition (and by the way could he use the video he took to show his pupils what a clean healthy artery should look like as it is so rare to get a patient having an angiogram when nothing is wrong) he told me that if anyone said I was having a heart attack he would call them a liar.
This has not stopped other problems, apparently I have sluggish blood, its too thick, and through that I had some pains in the right shoulder (small blood clots on the lung) and am now on thinners (warfarin)- still the good bit was it helped seal up the hole from the angiogram quickly.
So the moral of the tale, don't ignore blood pressure (either way) don't ignore heart attack symptoms (of ones for blood clots) and see the doctor if you feel anything unusual is going on.
I am now 54, and since being made redundant a few years back have taken on a more lowly position and at work am taking it easy (well I say that, but I still do twice as much as others doing the same job) but I have no pressure from work.
Cholesterol - Somewhere under 2.4 last time I was tested, so even with low BP and low cholesterol you can still have problems, but caught early its all treatable.
Take care all
Grendel