An artery obstruction would cause a heart attack
if it occured in the coronary arteries of your heart, leading to the death of muscle tissue up there (myocardial infarction
If it occurs anywhere else in the body, then no, it is not a heart attack. Artery blockages can be caused by emboli (an object blocking your artery). For example, an arterial blockage in your brain would cause a stroke, not a heart attack.
I would say that this had the major hallmarks of a heart attack (e.g. chest pain
, arm pain (usually the left), vomiting
) but it depends if the artery was completely blocked off or partially obstructed.
If it is partially obstructed so blood could get through you would be suffering from mild to severe angina
(which is like a heart attack) but if it was completely blocked then it would be a heart attack.