LG G5 Apps/services keep crashing . . . Hardware Issue?

for the past few weeks my LG G5 has been unexpectedly restarting, apps have been crashing, and I've been getting messages like "Unfortunately Bluetooth has stopped" but for pretty much every app/service. Also, I've had the phone get stuck on boot loops which has made removing the battery the only solution to getting it to start again. I've tried restarting the phone, resetting network connections, even doing a factory reset twice, none of which help. Even after the factory reset, before even putting in my Gmail account, I get a message "Google Play Services keeps crashing" and then "Google Duo keeps crashing", repeatedly to the point where I can't even do a internet search due to these messages popping up ever 1 second. If I do anything even a little memory intensive, the phone will restart which makes me wonder if it's a hardware issue with the memory. I've had the phone for less than a year (It was a refurbished unit that was replaced under a third-party warranty I bought when I first about the phone from Costco). Otherwise the phone is in great condition. Not sure if it's just time to get a new phone. Any ideas? Thanks.