Hello,there could be many causes for severe upper abdominal pain accompanied by vomiting & sweating, in men. some of those conditons are;
1. Gall stones - common above 40yrs. More common in women than in men. Pain is severe after taking food. Usually pain is located on the right side of upper abdomen but it may radiate towards back.
( inflamation of pancreas) - severe pain that becomes better when you curl up or lean forward. oily food increase the pain. pain is worse after eating.
3. GERD(gastroesophageal reflux disease
) - pain is experienced a little higher up, worse in night while lying down.
4. Anxiety - usually with heavy sweating.but rare in the early morning.
5. Irritable Bowel Syndrome
- most "likely" cause of your pain. Symptoms like abdominal distension, bloating gas, painful diarrhoea & frequent constipation
are also seen along with severe abdominal pain
. Commonly seen in men. Intensity of symptoms varies with every individual & no laboratory methods are available for diagnosis .
However you also rule out the possibility of cancer as you are above 50 yrs. Cancer pain is persistent & there will be loss of weight.