He is on Seroquel, Aericept and Ativan. Last night he was coloring and watching TV when all at once he put his pencil down and his book and started crying and said he needed an Ativan he was having a panic attack. I asked him what happened and he finally said he put two colors together and had a flashback about a really bad time in his childhood. I didn't ask what colors I just gave him the Ativan. Is this a common event with Dementia ? This must be awful for him if he can't even color without panic attacks and flashbacks. Can someone help me understand ?