Random reboots and freezing

Hey everyone. I am having random reboots and freezes. I was originally on a stockish OB7 rom. I decided to flash to the Alliance ROM but, I was having some issues. So I flashed stock OB7 through odin 3.07. Used CF-Auto Root. Then chilled. I started getting random reboots all day. About that time the OE1 came out so I thought skip it i'll just roll stock for a while but, low and behold some where in the update it got messed up and I lost my dialer and my camera. So then I essentially had no phone which, has caused me to have to use my wife's old Iphone, which pains me beyond belief. Because of OE1 not having a TAR I could not flash the ROM to fix it and I didn't want anything else random or crazy to happen so I waited for something with a TAR. So I flashed OF5 and still got random reboots and freezes that cause my phone to not turn on and I have to remove the battery to get it to power on. So, now I'm on OG5. It runs great but, still random reboots and freezes and won't turn back on . I can deal with a few random reboots but, I can't deal with the freezing and the phone not coming back on. Does anyone know the cause of this issue and are there any fixes? I have searched high and low. I have been flashing for a while so I know the steps there. Just looking for some help from the group. Thanks. Sorry for the long message I just want to try to be clear. Thanks again. I appreciate any help given.