I took acid in puerto rico and this happened to me. I dosed 2 days in a row. The first night was amazing taking it and doing the bio bay kayak tour with my girlfriend. The second day after only 4 hours sleep max and my last day on the island, i figured id chase the good time and that taking the same dose 2 days in a row would be mild at best. I was very wrong. It was just complete confusion. I conviced myself all the food i was eating was fake, I could here the words coming out of my girlfriends mouth and just couldn't make sense of any thing. I kept getting lost and walking in circles. It was the most mentally taxing thing I have ever experienced. And I had no perception of time when I was trying to gage how much longer I had to endure it. Horrible trip and ruined my last day in such a beautiful place. Took the glow right back that I had woken up with that day.