Does a brain abcess cause mood swings like cryinf and angry?

May be variable: The symptoms may vary depending on the site of the abscess and its size and also if acute infection is associated with the abscess

Brain abscess?: A brain abscess is a dangerous life-threatening lesion, which could easily eventuate in many intracerebral disasters. Why are you tying your mood swings to an abscess? Would it not be appropriate to have a psychologist or psychiatrist explore how to deal with your emotional "mood swings"?

Depends: It's much more likely that one would be severely ill with an abscess in the brain than suffering from emotional distress; it certainly would depend on where the abscess was located.