Hello,
Thanks for the query to H.C.M. Forum.
Since your father is having
Hiatus hernia and that is the main culprit of
weight loss beside old age factor.
Upper G I
endoscopy will find out the exact nature of extent of disease .
Now stomach is 50 % in chest and discomfort is there , consult one more gestroenterologist and get his opinion.
As far as concerned about
fatigue and weight lost , these symptoms are due to Hiatus hernia.
Try to improve the diet schedule of your father for
flatulence .
Try raising the head of your father's bed about 4 inches with blocks. It also might help to avoid eating or drinking for 3 hours before he lie down.
Avoid greasy, fried , spicy , foods .
Consult a gestroenterologist and if possible get in surgery . Good luck. Dr. HET