should i go back to a previous invisaign aligner

Q. Hello! I started invisalign this year. I am due to have 10U/14L. I am currently on 8U/8L but I am worried about my upper teeth so far and my dentist isn’t around to advise me. I changed onto liner 8 on Thursday night last week and I couldn’t get it to fit onto my canine button (I have a button on both canine teeth on the top). I played around with it for a while and thought I had it on and went to sleep. I woke up on Friday with the most incredible pain in my front two teeth – really sensitive. I took the liners out, had some breakfast and put them back in and again, thought they were on ok but at lunchtime I called my dentist. She was off sick and is at a conference all week this week. She said to go back to the previous liner but then I had lunch and again I thought I had it on correctly. I think I had it on correctly for the past two days but now today I am sure it’s not on properly. It’s so hard to tell. It doesn’t “click” in but if I get the iner matched up with my canine first and then fit the rest of the liner around it, that seems to do the trick…sometimes! I am convinced the liner isn’t made very well as I am religous about wearing my liners. I have an appointment to see my dentist in a weeks time – should I persevere or should I go back. Part of me thinks – go back. Another part of me thinks…hmm my teeth have stopped hurtnig and so must’ve moved successfully, would I be doing more damage than good by going back a step. So frustrating – yuor advice would be gratefully received! Helen