Abdominal Pain, Throat Tightness And Chest Pain When Breathing Deeply. Medical Test Normal. Heart Issue?
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Heart disease is rather unlikely. Your symptoms do not suggest CAD. Pain from the heart is oppressing, in central chest (and left), worse on effort, may radiate to shoulders and arms, associated with sweating and so on. The very act you can work out weight training in a gym practically excludes any significant heart problem. Just have a Treadmill Exercise Electrocardiogram (TMT) to make sure...
All the features can be explained by Anxiety. The picture is very highly suggestive of Psycho-Somatic disorder. Psychiatric assessment and assistance is likely to be of great help - both in diagnosis and management..
Wishing speedy recovery
Have Lung function test (Spirometry).
They can exclude significant disease and build up your confidence.
Sounds from intestine are normal phenomena. Most may hear on occasions.
Anxiety cause Physical symptoms. Physical symptoms cause anxiety > it becomes a vicious cycle.
Get yourself involved / immersed in work during weekdays.
Develop hobbies - sport, for example.
Go out - Park, beach, Cinema
Develop your relations better - immediate family, good friends...
Believe me! / from nearly 5 decades of experience I can say - you will be well.
God bless you