But if its not it could be the saddle pinching her..you could find this out by measuring her withers and what not or see where she is over-sweating after riding or lunging her to the point where she sweats
Although its easy to blame this on tack (which it very well may be) I would try a different bit and see if it helps. Otherwise, try to keep your hands low and wide while riding, keep your hands still to somewhat act as side reins. Let the pony throw its head, usually if it just a behavioural issue they will stop the head throwing and relax into the contact. I recently did this with a horse and by the end of one ride she was relaxed realizing that the reins were not moving and pulling on her mouth.
I would definitely check the saddle and her back and see if she is in any discomfort and then if it’s not her back does she do it the whole time? Near the end of a ride? On a particular rein?
Hope this helps
@chiaraamor no it’s just a normal noseband alsmot identical to her last one it’s just that this one actually fits her 😂. I honestly think it could her the saddle as I don’t have it fitted but But next month I’m going to get one fitted and then my problem will hopefully be solved!! Thank you :))
She probably has another piece of tack that’s making her uncomfortable. You can try another bit set up and see what’s going on. Is it a normal noseband that she used before? I know some horses that went from a normal bridle to a figure 8 bridle and was extremely unhappy.