my 80 yrs father has been having stomach pains for the past 7 days.  The pain is directly in the center of the abdomen.Today he almost passed out he got very lightheaded and was sweating profusely. He will see his MD this week for a complete work up. What do you think it could be?
The symptoms you had mentioned are mostly suggestive of some gastric infection for which you can take some antibiotic preferably oflox-oz or zifi-oz after expert advice along with opened or rebuild empty stomach one hour before meal for severe gastric upset. You can take Cyclops or meftal-spaz for abdominal pain and bloating. Take some multivitamin like meganeuron-plus or metilda-af once daily also.