Dr. i feel very nerves & stressed my vitamin b12 report show -156 observed value & 25dh vitamin -d3 shows -17.44 is this a reason of my behavior .

May be factors...: Lots of causes for stress and nervousness, including poor nutrition due to diet, disease, etc. Usually not the root cause, but certainly doesn't help the situation. Vitamin d deficiency not likely to be directly related to complaints noted. B12 deficiency can cause neutopsychiatric symptoms, not usually the ones you mention. Look for other factors as well.