V@no, are you a ghost? I have heard that sometimes phones will act strangely during use if you are a ghost. Something to do with spiritual electromagnitism. This would also explain why you are having compass issues!
Okay, so back to being serious. I've had the EXACT same issues you speak of when my phones (yes, this has happened to other phones too) were connected to 'dirty' power.
What I mean by 'dirty' is either a power supply that was very low quality or using a USB cable that the phone didn't like. Just recently my Nitro was acting erratically while I have it plugged into my computer. It shouldn't have been a problem because I was using a high quality, well shielded Blackberry branded cable (worked perfectly fine with my Nexus One), but as soon as I used the usb cable that came with the Nitro then everything worked correctly again.
Hope this helps!
Phone: LG Nitro HD (rooted)
Battery: Stock (Hyperion 3800mAH now unreliable)
ROM: CM10.1 Nightlies
Kernel: Wind Kernel
Storage: Sandisk 32gb SD
--> Titanium Backup
--> Go Launcher EX
--> ClockworkMod Rom Manager
There is no "Truth", only perception and deception