iPhone 5 excessive data usage

Hey everyone, just checked my data usage for the past 9 days on my new iPhone 5 and saw that I have used 5+ gb. I usually use about 1.5-2.5 in a month (if that) as I have great wifi in my home and office. I know people have spoke about this elsewhere, but I believe the problem is related to iOS 6 switching between LTE and WIFI for some reason, most likely it picks up whichever one is faster. Thank god I bought the phone off contract so I could keep my unlimited data plan with VZW, or I would be screwed right now. Anyone else having similar issues?

FYI I believe the issue is baked into iOS 6... Also my usage has not gone up so don't tell me LTE uses more data, it just uses it faster.