I've been getting anxiety attacks lately, and they range from mild to severe. If I smoke more than a tiny bit of weed I start to get them, and if I take more than a few hits they can be really bad. Crippling. I took some shrooms one time and then smoked a bunch of kind bud, and I literally thought I was dying. I tried to get my girlfriend to call the hospital but she wouldn't. It's really scary, especially when the people around you have had no similar experiences.