Is Involuntary Puffing Through The Mouth A Side Effect Of

Is involuntary puffing through the mouth a side effect of Seroquel? it seems like it started right around the time I started this med but then there were a lot of changes at that time( different environment, I put on weight due to the Seroquel, etc.). I also find that even if I "hurry" which is really equivalent to power walking a short distance, I am totally winded! I could run/walk 5 miles prior to the weight gain and Seroquel. Any advice, am also suffering from edema. I'm not unusually unhealthy - BP has always been good, heart-rate slow naturally (around 60bpm), no diabetes, but I have asthma and I don't think that's what this is b/c I had asthma when I was walk/running too and it was never like this but then... I AM carrying around an extra 70 pounds now :-( What do you think?