Hi hammerman,
My hubby is on 75mg aspirin (dispersable) daily. Having had angina (thankfully no other medication is now required), it is still prescribed by our GP with regards to thinning the blood. As already advised by other ABers, it is a medication, and should be only used on your doc's OK...
Various factors are: not suitable, especially with other medication; allergic reaction; not required (blood does not need thinning). It must always be taken after meals (pref in the morning) to avoid stomach bleeds.
So, along with the other peeps - go see your doctor!!
n00dles