there is information about higher risk of parkinson post tamoxifen treatment https://bmcneurol.biomedcentral.com/articles/10.1186/1471-2377-10-23
anastrozole and other AIs are technically stronger so I am with you on theory of loss of dopamine neurons however I think my condition is more insensitivity to e2 signaling.. because I have low e2 symptoms no matter where my e2 sits.. when my e2 goes up low e2 symptoms don't go away I just feel worse
imo you will feel a bit better with time if you will not use any AI but it will be like 1-2% improvement per month..