Should I see a psychiatrist for disturbing nightmares?

Nightmares. Could be your only sx or could be part of a constellation of sxs. I.E., nightmares occur in ptsd. Many patients with depression or anxiety experience nightmares from time to time. If nightmares are the only sx but are impacting quality of life, working with a mental health provider may well be beneficial. If one of a # of sxs, then please see a psychologist or psychiatrist for comprehensive eval.
Nightmares. Assuming no medical reason for the dreams, talk to a psychotherapist to help you explore the dynamics & resolve the conflict causing recurrence of those dreams.