I have three aneurysms, all on the right side. I have had one coiled, it was a 12.9. The other is 4.5 and a small one at 2.2. They are watching the 4.5 one. I am 62, yes, I do have trouble some times with thinking, the word is there but I can't get it out. I don't think it is related so much to the aneurysm, but to the worry. Age may have some role in this. But, where is your aneurysm located? What size? Our brains have certain parts that control certain activities, if the aneurysm is large enough to press on something else, possibly this may have an effect also. I am not in the medical field, just venturing a guess. I worry, I don't want the second one to rupture, so this sometimes throws off my thinking.