I have been vaping exclusively for 7 weeks now. I am incredibly happy to have quit smoking. I haven't felt this good in years. But the last couple of weeks I have been having some weird mood issues. I suddenly get mad as hell for no reason. I will just be sitting at my computer and out of nowhere I am completely ...... off. The weird thing is that I'm not mad AT anything. I'm just mad. It's only happened 3 or 4 times this last 2 weeks, but it's kinda weirding me out. Anyone else have this problem?