I both love and hate technology

My phone (Galaxy S5) just started glitching yesterday ... it's slow to respond, if it responds at all, and randomly wants to restart ... I just got this phone in April and it recently did a system update so ... I don't know.  I'm wondering if I'm going to need to stop by my provider and see what's going on ...

I love it when it works, but when it doesn't, technology sucks.

EDIT:  I figured it out - it was my external sd card (which I took from my old phone and put into my new one) ... looks like it may have started to go corrupt.  I took it out and now my phone's just fine.