Only thinking the other day that we hadn't heard from you lately.
These silent heart attacks can be more serious than the conventional type. Because they are fairly symptomless, treatment is delayed and permanent damage to the heart muscle can take place. The stress test will give an indication of how healthy your heart is. You may also have an echo-cardiogram, which can look for signs of damage.
Here, the follow up medication includes low-dose aspirin (an anti clotting drug), beta-blockers to reduce the work of the heart, blood pressure medication and diuretics.
A statin is also included to reduce cholesterol levels and intervention over triglycerides (another type of blood carried fat) may also be indicated.
Surgical options are angioplasty and a by-pass.
Here's some follow up reading-http://en.wikipedia.org/wiki/Asperinhttp://en.wikipedia.org/wiki/Beta_blockerhttp://www.patient.co.uk/health/Medication-for-High-Blood-Pressure.htm
Note that the above link uses some UK drug names. Here, Ramipril (Tritace/Altace in the US) is prescribed as a first option blood pressure control med, mainly because it's very cheap. I know from personal experience that the side-effects are very common, if you take it, be aware of those.
I was also told to avoid further does of aspirin as it negates the effect of the low dose. I should also avoid Ibrprofen and any other NSAIDshttp://en.wikipedia.org/wiki/Non-steroidal_anti-inflammatory_drugs
And, curiously, grapefruit. It interferes with the statin. I never liked the fruit anyway.
It's almost 5 years since my (non-silent) heart attack and I've made a good recovery. Hope it all goes well for you too, Z.