Two fills ago my doctor had trouble getting into the port. So, I was taken down to radiology where they pushed and prodded untill they were able to get in and do the fill. He said it was just lying in an awkward position but not to worry. The last fill was just fine. Nothing fills different, I can still push on the port and fill it. So yesterday he was not able to get in again and I had to go to radiology again only to find this time it had flipped. I was aware that this is a possible side effect of loosing weight and becoming more active. I am not worried about the surgery just anxious.