I am 5 weeks out from rny. The last 2 weeks I have felt like I am in a mental fog. I forget things easily, seem slow to process info, not sleeping well, and at times feel like my face is numb. I cannot speak clearly at times, it feels as though my lips and cheeks are stiff. This comes and goes. Also very tearful. On my way to drop off something at my husbands office today, I missed my exit and was confused as to where to go next. I knew I was now going to be late and began crying. I am very familiar with the area in which I was, but at the time felt overwhelmed and confused. When I made it to his office, my husband insisted I call my surgeon. the nurse told me it sounded as though I may be low in vitamin B1/ thiamine. I was told to immediately get my blood drawn and start on 100mg/day of supplement till I heard from them again. It will take 5 days or so to get results. So has anyone else experienced these symptoms?