Random Find my iPhone alerts quite scary as I have changed my Apple ID
Hey guys I was wondering if you can help it's a matter of emergency as I have changed my Apple ID around 3 times to something different and still i get in the middle of the night "Find my iPhone alert" and this is when my IPad is off and so is my MacBook and this is around 11 till 3 i have had 3 different occasions and emails conferring them as I though it was a dream as it woke me up. I am quite worried as i might be tracked! Please tell me what to do, Thanks.
iPhone 5s, iOS 9.2