Wellbutrin XL - I have been on Wellbutrin 150mg XL/Once a day for about 4 months. Over the last month or so I have had these intense "panic" attacks that seem to happen at bedtime mostly, but have happened in the mid morning as well. They feel like I can't get a breath and I have to walk around and pace very quickly to deal with the feeling... very weird. I also noticed it kicked off once when my wife and I had an argument... I literally felt it switch on in my torso and started to cold sweat a little, then I started to feel everything closing in and began to feel the panic coming on. Is anyone else experiencing this? Is this a panic attack? -JP