I didn't notice side effects BUT I wasn't expecting any. I went off the pills because, meh, I wanted to. I don't necessarily think my anxiety went away. I just wasn't worrying about health stuff at that time. My daughter was fine. She is 11 now.
I didn't deal with THE anxiety "why's, how's and wherefore's", really, until 2009. that is when I started to get "real" with what anxiety is. 2009 is when I began REALLY seeking recovery
You can get the scan. Again your choice either way. Based on my interpretation of what you say in your posts---what your thinking process seems to be. Your posts read like many anxious peeps. My guess is it will probaly "solve" your anxiety about a brain tumor. But I am doubtful it will solve your anxiety disorder. My opinion is in a week or month or 6 months, you will get some new symptoms OR you will get some new stresses in your life and your HA will reassert itself. I don't say any of this to be mean. I say this because I did this to myself (said the same sorts of things) for a long time AND I have seen this play out with member after member at AZ for 5+ years.
So I guess you could say I am a little bit jaded with regard to reassurance med testing having any long term effect on people..
I hope you are right and the scan will be the thing that gets you on the road to recovery
good luck with whatever you opt to do.