It was definitely the Motrin.
I would start getting forgetful about 1-2 hours before it wore off, and I didn’t make the connection, I naturally forget crap anyway, and because I always took it at the same time every day. 5:00AM and again at 5:00PM and it would go away.
I missed taking it at 5:00PM one day and about 6:00PM when I got back in town I was lost. No clue who or where I was for about an hour, then it started coming back.
I never panicked and didn’t even get real excited about it. I had a sense I was supposed to be there, I just didn’t know why. I drove around, I could still drive, thinking I would eventually recognize something to tell me where I was.
Finally I started recognizing things and I found my way home.
Needless to say I didn’t take any more of the Motrin.
I haven’t had The Fog in years. First attack of it 19 years ago I was on the interstate. I finally learned how to head off getting to that point.