Throughout my life I've been bothered by allergic reactions to various type substances. It seems like whenever I get over one, another comes along to aggravate me. No brag, just fact. LOL
With nicotine, my inability to smoke strong blends occurred suddenly about 2 and a half years ago. I would get the spins, hiccup and feel sick at my stomach whether right after a meal or on an empty stomach. If this had occurred gradually I would have guessed it was due to the aging process, but I believe it to be an allergy.
When I smoke perique laden blends my bronchial tubes swell up, my nose slams shut and my eyes water almost immediately. The reaction is much the same as what hayfever does in the fall to me. It took a little longer to isolate as I would set aside the tins that caused it. All the tins contained a goodly dose of perique...Ashton's Black Parrot, GLP's Haddos Delight, McConnell's Scottish Cake, McClelland's Frog on the Bayou, etc.
Jim