Is this blood pressure dangerously low?

Blood pressure is too low when it causes dizziness. It is dangerously low when it causes blurry vision, headaches, and fluid retention. It would be a good idea to get a doc appointment to find out why the BP is low. Even the the BP itself might not be more than an inconvenience, it could be a symptom of a heart or neurological problem that might be a concern. Usually there isn't any explanation for low BP, but its prudent to get checked by a doc just to rule out problems that might cause it.