X-Axis Noises

My printer is starting to make loud noises somewhere in the area of the X-axis motor or belt - something like a loud humming for 5-6 seconds at a time. It's hard to tell exactly where the noise is coming from, but it's significantly louder when traveling back and forth across the length of the bed in the X-direction. Otherwise the printer is super quiet, as expected.

Is anybody else experiencing this?

So how did this work out in the end? Mine is very loud on the X-axis and gets stuck in X-direction ruining prints since last week.

My problem turned out to be the X-axis motor. After swapping it out it runs fine again;-)