SYMPTOMS OF BAND SLPPAGE

I HAD A FILL ON 3-23-09 AND IT WAS FILLED TO TIGHT I WASNT ABLE TO EAT WITHOUT VOMITTING. I COULD DRINK SO THAT FRIDAY I WENT AND HAD A HALF OF CC TAKEN OUT AND IM AFRAID THAT MY BAND HAS SLIPPED? DOES ANYONE KNOW THE SYMPTOMS OF A BAND SLIPPAGE?  I LOST 12LBS BETWEEN MONDAY AND FRIDAY. SINCE THEY TOOK OUT THE HALF OF CC I HAVE NOT LOST ANY MORE WEIGHT BUT I CAN TELL THAT I AM EATING WAY LESS THAN I HAVE BEFORE?