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Repeating the same investigation several times will not be much help.
For the suspected heart pain, you need to be investigated for Coronary Artery
Go for TMT (Treadmill Exercise ECG) with thallium isotope. It is the ideal non-invasive way to evaluate ischemia
/ to assess the PHYSIOLOGY (function) – to see whether the blood arriving at the heart muscle.
If there is a suggestion, the next step is to see the ANATOMY (structure) – undergo catheterisation and coronary angiography
with a view for possible intervention. It is the only way to directly ‘see’ the block, if any – and its location, extent, severity and so on. Coronary arteriography is invasive but it is the gold standard for this. [CT angio is non-invasive study for the anatomy. If positive, she will need catheterisation, anyway.]
For your eyes, an Ophthalmologist can help
Wishing speedy recovery