Help Razer Blade 15 advanced 2018 making loud noise

Hello. I was using the computer tonight to browse the internet. While doing that, the computer made a loud noise, almost like a high pitch engine revving. It stopped and then started again. What is this? What can I do? I will try to attach video. Anyone heard this before? I could literally feel the table vibrating a little when the computer did this. I am trying to upload a video but it looks like I can only load a photo?? Anyone know how to load a video? I am freaking out. thanks much!!!!