Ive been looking at some posts and have notices that anxiety can possibly lead to having a dry mouth, having difficulty breathing, and also possibly leading to dry heaving. Recently, I have been experiencing the first two symptoms occasionally. When all the symptoms occur has almost always been recently, when I smoke some marijuana. I have smoked the chronic a lot in my days and just recently these symptoms have been developing. I have noticed that eating helps, drinking some soda, and breathing deep helps too, but my main question is: Why do I only dry heave after smoking some marijuana if these symptoms show up regularly(except dry heave)???.