Hey hun, fears are fears, doesn't matter if they seem rational or not. We all have fears. I tell ya what I'll take you test if you take my colonoscopy?
No but seriously I would never tell you you shouldn't be afraid. I will give me my opinion though on what I would do in your case. If the dr. wants it done get it done. One major reason is that having it hanging over your head is going to cause the symptoms you mentioned about fog and forgetfulness. Stress will bring on these episodes. So if for no other reason then to set your mind at easy. Then there are the medical reasons. Some times some of the drugs we are on can cause these symptoms a well. It could be just a matter of changing meds. thirdly, if you do have something going on the sooner you get it dx'd the sooner you can get treatment. There are meds out there that can be taken to slow down the progression even if it doesn't cure the problem.
You need to take it head on. You are tougher then you think. If you have a good job with responsibilities it says that you have a lot on the ball. You have been through a lot an continue to get up swinging. I have no doubt you will do it again. If you get scared we are all here to hold your hand.
Let us know what you decide.
love ya
carol
p.s. my dr. said my fog is probably from taking xanax for so many years and because I have sleep apnea and don't use my cpap. (who knew)