Your symptoms of brain fog, random chest pains on both sides, shoulder and arm discomfort, and overall heaviness are not coming from the heart. You already have normal BP, a normal stress echo, and your chest symptoms improve with Allegra and Pan, which strongly suggests that the cause is not cardiac.
The fibro parenchymal bands seen on your chest X-ray are old healed marks inside the lungs. They do not cause pain, breathlessness, brain fog or any danger. They are commonly seen in people who had minor past infections or allergies. These bands are harmless and usually require no treatment.
Your pattern of symptoms fits best with a combination of acidity related chest discomfort, allergy or sinus related issues, and anxiety or over alertness due to persistent worry about the symptoms. All three can create chest tightness, vague pains, shoulder heaviness, left arm discomfort, and a foggy feeling in the head.
Acidity can irritate the esophagus and cause chest discomfort. Allergies can produce brain fog and strange chest sensations. Anxiety amplifies normal muscle contractions and nerve sensations, causing random shifting pains in the chest, ribs, shoulders and arms.
When these three overlap, it becomes difficult to identify the exact source of pain, but it is not dangerous.
Next Steps
What you can do now:
1. Continue Pan 20 for at least two weeks before breakfast.
2. Continue Allegra for one to two weeks if it helped.
3. Avoid excess tea, coffee, spicy food and late meals.
4. Maintain good hydration and regular sleep.
5. Do light neck and upper back stretching because muscle tension can cause chest and arm pains.
6. If brain fog continues, consider checking
vitamin D and
B12. Deficiency of these two is a very common cause.
Health Tips
Seek review if you develop breathlessness, fever, persistent severe pain or weakness in the arm, but based on your tests and pattern, nothing points to heart or lung danger.