Are the symptoms of body dysmorphic disorder bad?

Yes: Yes, they can be very disstressfull and often lead to depression if untreated.

Yes: Body dysmorphic disorder means you see your own body as abnormal. This erroneous perception of your own body is a representation of self-hatred and may be due to underlying emotional trauma. Other conditions associated with body dysmorphic disorder are anorexia, bulimia, depression, and anxiety. It is best treated with cognitive behavioral therapy and/or antidepressants.