Hello
Faintness , fatigue, lethargic , headache , chills , chest pressure , increased pulse, chills , pain , SWELLING all these symptoms amy be due to .
1 Congestive
heart failure , so I recommend you please
consult a cardiologist and get his opinion as heart rate , swelling , chest pressure are an indication of heart involvement . Since you are overweight and
increased heart rate ,, swelling all these are concerning .
2 Anemia may be the another reason of such symptoms so get in hemoglobin level examination.
3 Tension is the another most common cause of your symptoms .
There are so many other reasons as High B P ,
chronic renal failure,
thyroid dysfunction but deal as I mentioned above .
One advise for you if you can decrease your weight 40 lbs , you will feel much better.