13. Shortness of Breath
Experiencing shortness of breath is actually a symptom of anemia, which can result from the chronic blood loss from an ulcer. But since anemia can be harder for an individual to detect without seeing a doctor, shortness of breath is often what is most noticeable.
Shortness of breath occurs with anemia due to a shortage of red blood cells, whose job it is to carry oxygen to the cells of the body, including those in the lungs, making it more challenging to breathe.

14. Feeling Faint
Feeling faint, lightheaded, or dizzy are all additional symptoms of a bleeding ulcer. This consistent blood loss can lead to anemia, as mentioned earlier, which can cause a person to become lightheaded or even pass out (faint).
It occurs most commonly when someone tries to stand up quickly after being seated or lying down for an extended period of time, and the body is unable to pump enough blood to the brain. In addition to feeling faint, lightheaded, or dizzy, people who have developed anemia as a result of an ulcer may also experience weakness and excessive fatigue.

15. Stomach Discomfort
People with ulcers may also experience symptoms similar to those of acid reflux and heartburn. And while they may feel the same, they are not. For those with ulcers, stomach discomfort is the result of the ulcer being aggravated by stomach acid.
However, the acid does not tend to come back up from the stomach and into the esophagus as is the case with acid reflux and heartburn. Another distinguishing difference between the conditions is that stomach discomfort tends to be eased by eating and drinking with ulcers, whereas acid reflux is generally triggered by the consumption of certain foods and beverages.

Emily Lockhart
Emily Lockhart is a certified yoga instructor and personal trainer. She believes that being healthy is a lifestyle choice, not a punishment or temporary fix to attain a desired fitness or body image goal. Anna helps her clients take responsibility for their own health and wellness through her classes and articles on ActiveBeat.