Treatment date for gammaknife received

I have now received a date to have my gammaknife treatment which is for the 1st of August 2012 at Sheffield it has fallen as tho I’ve waited a life time for this date but to be honest it’s has only been 2 months, as the days draw closer im getting very nervous about it all, is there any thing you can recommend me to take to hospital as I’ve got to stay in for two nights and is there nothing I need to expect after having it done ie swallowing, headache etc.
I’d like to thank everyone on here as you have help me so much to come to turns with my avm and given so much support to get thru this thank

Jodi x