I have a lot of trouble with this as well. Makes the DP come on full force. The other thing that does this is when I think of images in my mind I wonder where the hell are they and how and who is looking at them. The only way out is to do something and distract yourself before the panic hits home otherwise you're stuck in that dreadful state for a while.
And please stay off the grog. I'm still trying to get over Sundays night session of booze. If your drinking hard every second day you'll never give your body a chance to recoup. DO anything but drink. Listen to this or simply do it your way and f*** yourself up. Your choice. If you can't stop, get help, seriously. NO MORE DRINKING!!!!!!!!!