Indeed. I haven't started getting lightheaded since I quit taking it, I was occasionally getting it before when I was taking it (only occasionally and usually only when standing up suddenly... probably just a sudden drop in BP) and it has stopped since I quit taking it.

You're probably right about the chest tightness. My guess is that it is mainly caused by anxiety of knowing I'm not taking medicine that I've been used to taking for 3 and a half years.

And I suspect you're right about my doctor agreeing, seeing as when I saw her a year ago she said I could quit taking it if I wanted to. :) A year ago I was just at a time where I was suffering constant panic attacks and the thought of changing something like that was too scary so I opted to keep everything the same. Truth be told I wouldn't have stopped taking it now if they hadn't refused my refill, but I'm starting to be glad that they did. I'm still having bad anxiety, but I'm starting to see some physical benefits of not taking it (and I had become so used to the side effects I'd forgotten they weren't normal. I was so used to getting out of breath and having an irregular heartbeat I'd convinced myself that I was just in horrible physical condition (which I'm really not in too bad of shape which I can see now that I'm not taking it anymore) and that I just had a weird heartbeat)