Sudden jaw pain during Invisalign treatment - normal?

I've just gotten onto my seventh set of aligners. Prior to this tray, I've had almost no pain, just sensitive teeth for the first few days of each new aligner. It's been two days since I've started wearing the seventh set, and I'm feeling a lot of pain in the left hand side of my jaw, to the point where opening or fully closing my mouth is difficult. I'm unsure if this relates to my wisdom tooth, however my dentist said it shouldn't have any effect. Is this normal?