Iphone event log to check potential hack

Apologies is this seems somewhat weird, I was using the reddit app on my iphone when I clicked on a tag in my search history and at the same time I noticed my flash go off on my phone. I suppose this could have been some strange hardware issue in my phone, but I suspected it took a photo. I checked my photo stream and there was nothing new. There is no log of events on my phone I know of, but I wondered if it was intentional. Curious if anyone here has any idea if it could have been something intentional (it taking a photo), or maybe some log info source I could check to see if it was legitimate hack.