We are sorry to hear that your adjustment period with ZQuiet hasn't been easy. Feeling some discomfort is common because you are training your jaw muscles to move to a new position. It's similar to your muscles being sore after starting a new exercise routine. We always suggest wearing ZQuiet when you are awake for short periods of time (watching TV, sitting at the computer) until it's comfortable enough to try going to sleep with it. However, if you have pain or discomfort lasting more than a few hours after removing it, then you should discontinue use and contact us to make a return. Removing the mouthpiece (or it falling out) while sleeping is also normal. When you first begin using a mouthpiece, your brain can mistake it for food or something possibly obstructing your airway, causing you to spit it out for your own protection. Over time, this will stop happening as your neurological system recognizes that it is safe. If the device is rubbing on your gums, you can trim it down with small scissors and then file it smooth with an emery board. This will not invalidate the 60-night guarantee, so go ahead and give it a try. Drooling is not fun, but it won't last. When there is food in your mouth, you automatically produce saliva to digest it. Over time, your brain will begin to understand that the mouthpiece isn't food and it will stop producing saliva. Wearing it when you are awake for short periods of time when doing relaxing activities, such as reading or watching TV will also help train your brain to stop producing saliva. If you need more assistance or decide to return your order, please contact customer support at support@zquiet.com; they will be happy to help. Thanks for getting in touch! Sincerely, ZQuiet Customer Support