is my band too tight? Heartburn!

I have noticed that gradually over the last month since my last fill I have been having heartburn after eating. I have heard that this could be a sign of my band being too tight. I did have acid reflux before the surgery but since then it has completely gone away. I could even drink orange juice (which I was NEVER able to do) without a problem at all. I am having some pbing and getting food stuck every once in a while but I know its because I am not chewing enough, I am working on that and everything seems to be great. I am losing weight again at a steady pace and things seem good other then this heartburn. My fiance thinks I need an unfill, but I don't want to get one if this could be my sweet spot. Any advice? It doesn't matter what I eat, it can be anything and it seems to be happening more and more.

Thanks :-)

a little history- was banded on August 20th 2008- had to have my port revised in January...this is my 1st real fill since my 2nd surgery (had them put 4cc's in during surgery) went up from 4 to 5 previously the most I had in my band before the puncture in my port was 4.5.