Can hernia cause chest pain and lethargy in a young chap?

Hi doctor,

I am a 30-year-old male working in a national insurance company. My height is 5 feet 11 inches and my weight is 187.39 Ibs. I do not drink and I do not have any other habits. I eat a mixed diet. I am married and have one baby girl (two years of age). I am leading a stress-less life both at home and office. I am a very calm and smooth-going person. My only concern is my health.

1. I feel some pricking pain in the upper back side of the shoulder and the left side of the chest. I feel very uncomfortable.
2. I feel drowsy and unsteady throughout the day.
3. When I am walking or sitting or sleeping I feel that I am pulled down to the ground and I feel extreme tiredness and pain in my legs. At the same time, I feel air hunger and am not able to breathe comfortably.
4. With all these pains and drowsiness I am doing my routine work.
5. Also, I feel pain in the left side of my head next to my eye and I feel dull.

Two years back I underwent MRI cervical spine and CT chest, and one year back I underwent CT coronary angiogram. I was diagnosed with a sliding hiatus hernia last month. I underwent an appendicitis operation one year back. I am attaching my recent reports for your reference. As I am young, I am much worried about my present health condition. As I do not have the habit of regular exercise I keep gaining weight. I am not sure whether my diet is healthy and balanced. Please advise.