Pain Normal While Wearing Invisalign?

I have seen this before with just a few patients. The pain comes from teeth grinding during the day and at night. You should stop clenching your teeth during the day and at night. You will eventually get over it and you will stop clenching your teeth when your body decides that the aligners are supposed to be in there. You need to STOP clenching your teeth to feel the aligners in there. Leave them alone.
Also, you can alternate wearing them and then skipping a night. It's too soon for you to have tooth pain from movement cuz its only the 3rd aligner. Get a prescription for 800mg Motrin and take that for the first 3-5 days. Good luck.

I treat many patients with Invisalign and am currently treating myself. I had some significant discomfort the first few days (teeth very tender and tongue and cheeks raw with some ulcers). I stayed on Motrin and that pretty much took care of it. Now, I take Motrin on the day I put in a new tray and I'm fine. I have had some nights of clenching that make my jaw a little sore, however I'm correcting my bite as well, so I won't clench as much when treatment is finished.
Make sure your trays are fitting correctly, and and don't let your teeth clench or touch much throughout the day. Also, take Motrin. If your jaw muscle is tight and sore, your dentist may prescribe a muscle relaxer to take for 24 hours to get the muscle to calm down. Good Luck!