I was put on vitamin d 2000 our a day are there any side effects of this vitamin? and can i take it with my clonazepam inderal remeron and aciphex (rabeprazole)?

Vitamin D: Vitamin d at 2000 iu per day is perfectly safe, and would not generate side effects. It does not conflict with your other medications.

Medication should be managed by your Psychiatrist who knows your medical history. If you are not confident with your Psychiatrist please see another for a second opinion. It's a good idea to have a complete physical exam to know if you have a physical illness that is causing anxiety. Your anxiety could be helped by a Clinical Psychologist with expertise in multiple types of psychotherapy.