HI Mia,
Welcome to the club! I'm glad that you found this place, even if the reasons for findining it are not the happiest! This IS a good forum, full of really helpful people.
Ok, I didn't have GK, but I did have CyberKnife, so some of the reactions to the radiosurgery is the same. Other people here had GK so they will give you more specific details.
The sounds that you hear, tinnitus, won't disapear after treatment. Sadly, that's one thing that we all have to live with. The good news is that there are ways of dealing with it, and with time hopefully you will get used to it and learn to ignore the sound. Depending on how bad it is, it may be easy or difficult to do.
Stress will make all your symptoms worse, even more so before treatment when the unknown is the strongest! With time they should get better. The dizzyness should also settle I hope.
The one thing to remember is that we are all different. We all have slight different reactions to our ANs and treatments. It's always very difficult to say exactly how you will come out of it. In general terms, symptoms usually get worse right after treatment because the tumour can start to swell. Then, after a while, things settle down and symptoms lessen, or return to pre treatment level. I had very few problems with dizzyness, and right after treatment they didn't get worse, for example. Tinnitus became louder for a few months (nothing dramatic) and has now returned to 'normal'. Hearing is slightly less than before, 5% less.
As for recovery time, that too depends on the individual. Some have no problems at all and jsut go on working. Others like me had problems. I did work right after treatment, but frankly, I should have taken about 2 months off. I wasn't really that able to teach students and do my usual duties.
hopefully some Gk people here will give you some more information!
All the best,
Lorenzo
And your English is just fine!