Jaw clicking on the 2/3 after the first tray of Invisalign. Will the click go or get worse and is it permanent?

I have just started invisalign a week ago and I am still on my first tray. About 3 days ago, I have been noticing my jaw click when I chew or open my mouth real wide. So far, I don't have any pain but I am really worried that it would get worse as I progress with my treatment. I am not sure if this jaw click is temporary effect due to change in my resting jaw position (w/ plastic tray between my teeth) or something I should really be worried about. Can invisalign cause permanent jaw click?