My friend and I have been traveling together for a while now. We initially started with mimosa extract and like so many others have had no choice but to move to acacia confusa. Myself and a number of other people have tried the spice that was extracted from acacia have had very good experiences and have had no negative physical after effects. My other buddy on the other hand has after vaporizing two .05-.06 size doses about 20 min apart feels great until a few hours later when trying to sleep. He starts to sweat excessively and in the worst of the two instances almost felt like a flu was coming on. This has happened only when he has smoked multiple times in the same sitting, he has smoked once in a particular sitting and didn't get any of the bad after effects. This was not the case with mimosa, ever. Again, I have myself gone in multiple times in one sitting with acacia and have had none of the after effects that my buddy shows. Anyone else experience this or have any idea why this may be happening? Thank you in advance for your replies