This needs to be taken seriously. Ulcers run in my family and this fits
the bill. Please do take him to the doctor as soon as possible. Tums
can make it better temporarily, but in the long run, it can harm him, because he thinks he feels ok, ok enough not to go to the doctor when in fact, the ulcers do further more damages in the stomach lining to the point of fatigue
, loss of important things that make the body ticks like a tuned machine. Again, please get him to the doctor. Best luck!