If you're seeing some data weirdness on your HTC Thunderbolt or Samsung Droid Charge, you're not alone. We're getting reports of LTE outages, scattered from Washington, DC to Phoenix. As well as reports that all is well from many others. In any case, if you're not seeing the lightning like you're used to, you can stop fiddling with your phone -- it's not just you.
We're certain Verizon is aware, and will get things sorted soon enough. New technology requires baby steps sometimes.
Source: Android Central forums