I've vaped for ~5yrs ranging from daily to once every other week or so, but recently I've started getting awful panic attacks when vaping (I use a volcano, MFLB, or ascent). And they really only occur when I vape sativas (or mostly sativa hybrids). It's the weirdest effing thing but I hate it and can't figure out how to tell what type of herbs I'm buying (indica vs. sativa vs. hybrid) and my dealers are all clueless as to the difference as well (and there are no dispensaries in MA yet...) Any advice on how to tell? I need to buy some more, but I'm afraid of getting a sativa and having a panic attack again Ideally I guess I'm looking for 75% indica, 25% sativa since Ive heard its hard to get pure strains. Thanks guys.