No, sometimes when I'm at a bar and there is a lot of smoke, I feel my DP coming on strong. I don't drink at all so I don't know about the alcohol. But even when I smoke ciggs my self (I don't smoke weed or do ANY drugs) I feel the DP starting. Not all the time, but most the time. I just try and talk my way through it. Yea know....come on, pull through this....concentrate. Athough the ciggs do mess with my DP I just can't seem to quite the ciggs. I only have about 10 or less a day but it calms my nerves down soooo much. But I do think there is a connection between Ciggs and DP