Must Install directly from Apple Watch, not iPhone
In order to re-add the Quell app to your Apple watch, it needs to be downloaded directly from your watch. What you want to do is go into your watch and open your apps. Find the App Store app and open it there. You will want to search Quell Relief. When you are spelling it out, please make sure to spell the entire word out because, for some reason, it will not search partial words. Once located, there will be a button on your watch for you to download the app. I hope this helps someone!