10. Weight Loss
Likely due to the feelings of fullness, nausea, and indigestion that result in a loss of appetite, weight loss is a common side-effect of having an ulcer.
It’s quite common to find yourself losing more weight than normal while suffering from an ulcer. However, if you experience dramatic losses in weight for seemingly no reason, then this is a definite cause for concern and should be checked by a doctor as soon as possible.