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1. Usually when a patient complains of
chest pain, first think is it related to heart, as the doctor has ruled out with clinical examination and probably with [test], thus cardiac cause is excluded.
2. if chest pain is related with breathing, suspect trauma, or pleural pathology, if the necessary tests [chest X-ray and history] are normal, it can be safely omitted.
3. if chest pain is related to chest wall [as in your case: costo chondritis], check for parasternal tenderness, if there is intercostal tenderness,suspect Empymea.
4. if according to you, pain is coming after drinking fluids, it might be due to oesophagitis, or could be due to
indigestion & 'gas'.
PS:
i. Pain of cervical spondilitis, radiating to left side and CHEST may mimic cardiac pain.
ii. as symptoms are left sided,
Amoebic liver abscess might be excluded.
iii. worry leads to
anxiety, and anxiety leads to worry, just try to relax and because you are under the supervision of Doctor, just add
bed rest and fomentation to your routine.