Initial relief with prisms and little since

I initially got my first prism prescription in late May, in which the first 3-5 days of wearing the prescription all of my symptoms were reduced by 80-90%. The efficacy of these prisms regressed after that, and since then I haven’t been able to get back to where I felt in the initial stages of that first pair, I have been through 3 adjustments since then and none of them are helping much compared to the first prism prescription. I have slight vertical misalignment, and also a slight horizontal prism as well. My symptoms have been debilitating the past month and I was wondering if anyone has experienced something similar/ has any suggestions as to what I should do next. I am considering finding another BVD specialist as the prescription adjustments he has made since the first pair have just made my symptoms worse.