Yes, the moving too many times is what I meant by that, I could have been more clear in my OP!
The barn manager at our current location feels that she is an anxious horse, which I sort of concur with… She’s not spooky, but worries easily. She looks to humans for comfort and will start to lick my arms when she’s feeling anxious about something if I’m on the ground with her (mostly appointment situations).
Those who have suggested saddle: we have a number of saddle “fitters” in our area but they are almost all reps and I don’t trust them. The one I use is the only truly independent fitter in our area. There is one I would really trust in the next province over, but she almost never travels out here.
I am absolutely willing to try other saddles, and I may actually have a way of testing my bareback pad in a way that allows me to trot in it… I’ll try that this coming week and report back!
Edited to add I really am inclined to believe she IS getting pain from the saddle, but one thing I forgot to mention is that her first saddle was a totally different brand and style from the dressage saddle we have, BUT it was about 4 months into our riding journey using that saddle, after a barn move, that the issues started. She wasn’t on the turn out or diet that we currently have when the issues started. When we got this new dressage saddle, it didn’t show any discomfort initially, and we rode lightly with it for about 3 months before the issues came back again.
Just because I’ve already bought the Nexium, I’m going to run it for the 3 weeks I got (80mg dose which is 4 a day) and she’s due for a teeth check in November anyway so I can arrange the scope for then.