During hypnosis, as you relax your blood pressure can lower and your pulse rate may slow but all bodily functions return to normal upon completion of the trance state. Certainly more relaxed than when you arrived.
Yes, although as you relax more deeply you may not remember everything, but your subconscious mind still takes in all the suggestions.
Usually the first session takes one to one and half hours and following sessions only one hour. For Hahnemann Healing and smoking it is recommended to do three sessions at one week turn around.
Referrals are only required if you have been receiving treatment for severe mental disturbances.
Unfortunately Hypnotherapy is not covered by Medicare.