Most neck lumps are benign, but cancer is a possible cause. For adults, the chance that a neck lump is cancerous increases after the age of 50, according to the Cleveland Clinic. Lifestyle choices, such as smoking and drinking, can also have an impact.
Moreover, there are several theories whether or not Dr Wells in the one who killed Barry's mother. Movie pilot speculates that even though Dr Wells is the Reverse Flash, he isn't the one who killed Nora Allen.
If that doesn't have you guessing, consider what Tom Cavanagh, who portrays Wells, had to say: The nature of the Reverse Flash ... it's just not solely archenemy territory, says Cavanagh. Barry Allen and Harrison Wells mesh often, and when they do the result is often The Flash increasing his potential.