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I would suggest that you not come off of anything until you are able to talk to your doctor. Many doctors are still able to be reached while on vacation by their office staff or on their cell phones if you have his. Your symptoms are enough that you should not just wait until he gets back. If there is no way to contact him then I would call his staff and see who else you can see in the meantime. If you do decide that you do not want to take it then yes wean off of it very slowly and do not just stop taking it abruntly which you already know. But I would really suggest informing your psychiatirst who knows you and follows with you before doing so.
CBT therapy should prove to be beneficial and I am glad to hear that you are to start that soon.
Please let me know if I can asssit anymore!