The gels make my teeth sooo sensitive, I get shooting pains through my teeth. I can’t drink anything while I’m wearing the trays as it makes the sensitivity worse. I hate the feel of the trays in my mouth. The trays make me drool as well…. I’ve tried Sensodyne Rapid, nothing works. I can’t sleep with them in at all so I tried wearing them during day, but can’t cope with it for more than a couple of hours. After I’ve taken the trays out the sensitivity continues for hours. I feel a bit sick that I’ve wasted over three hundred pounds on this. I don’t understand why I can’t cope with them, and other people can. I think I must be a HSP, highly sensitive person ! Can anyone offer any advice? Would a dentist give me my money back? I rang up for another appt but when I told the receptionist my problem she was a bit snotty and said I had to persevere and use plenty of Sensodyne and she wouldn’t give me an appt.