Hello dear,
The fact that respiratory tests, chest x ray, echo
stress test has not shown anything rules out the presence of any Respiratory or Cardiac causes for the symptoms.
Under such circumstances, the symptoms can be due to:
1. Anemia- either due to decreased
Hemoglobin production or deficiency of certain nutrients like Iron, Vitamin B 12,
Folic acid, etc. which helps in blood formation.
2. Inadequate hydration status & electrolyte balance of the body.
3. Any fluctuation in the blood sugar levels.
4. Hormonal & metabolic causes.
5. Stress, inadequate sleep, etc.
Investigations like
complete blood count, estimation of blood sugar levels will be helpful to rule out any pathological cause for the symptoms.
And it is also needed that you take certain measures regarding diet & lifestyle, such as:
1. Take soft, plain, non-spicy foods
2. Drink lots of water to maintain adequate hydration
3. Avoid fast food.
4. Avoid smoking & alcohol.
5. Keep away stress..think positive.
6. Exercise regularly & practice
meditation.
There is no need to worry, you will be fine.
Wishing a Good Health.
Thanks & take care.