Today I took roughly 1 gram of aspirin within a few hours (I had a migraine headache and just wanted to see if it would help). Within an hour or so I noticed I was breathing faster than usual and it was both odd and a bit uncomfortable). I checked my pulse twice and it was 39! Now I normally have a pretty low pulse rate (52 or so these days which I'm trying to raise) but I've never seen anything close to 39 before. Is there any connection between aspiring and heart rate? Many thanks.