Hello I hope things get better for you. I would sincerely hope that you tell your therapist about these dreams, since you are having them and they are terrifying. When I get stressed I have weird dreams as well, sometimes, and it is scary in itself. Maybe your therapist can help you with the fear and the phobia manifesting itself in monsters, and nightmares. Try to make sure you eat, low sugar levels caused by stress happen sometimes as well. Take care and try to stay calm if you can, take someone with you to your appointment if you can, and maybe plan something positive to do after the appointment, to take your mind off of the appointment.. Take care Soidhonia