LG enV2 (VX-9100)

I've been using a Blueant x3 for months with no issues, but in the last week, my phone has gone crazy. The battery is unpredictable and my headset won't stay connected. I contacted Blueant and their suggestions helped me to connect the device again, but it disconnected almost immediately. I was able to pair the device with my husband's phone no problem, so I think the issue is my phone. Is anyone else experiencing this issue? Any suggestions? Am I off to Verizon for a replacement?
Thanks!