[Q] Android won't boot... topic

Hey folks...I'm running into a problem I was hoping someone might be able to help with.
Earlier today I pulled my phone out of my pocket at work and saw that it was off...I thought that the battery must have died sooner than I thought. I started charging it in the car on the way home and it wouldn't boot up like normal. It would get to the google or "dots" screen and then reboot. I again thought that the battery might just be really low. After getting home and charging the phone all the way I still can't get it to boot up. As of now, one of 3 things will happen...
1-The phone will turn on, get to the google screen and bootloop (usually when plugged in).
2-The phone will turn on, get to the google screen and freeze.
3-Get to the "dots" screen and either swirl forever or eventually reboot and do one of the above again.
I've read some threads where people suggest this is a faulty power button, that doesn't seem to be the case for me though because I can get into fastboot and it won't select anything or turn off without me doing it.
I've used WugFresh NRT and wiped/reflashed android. I'm running out of ideas. Do you have any others?
I was running the stock 5.0.1, unlocked, not currently rooted.
Thanks!