For bringing this topic up. I too had problems on an agonist.
Not gambling or as in your case Evon shopping but I was given a diagnosis of bipolar disorder after many hypomanic episodes.
The diagnosis was wrong and definitely it was the agonist.
Once the agonist was stopped (nearly four yrs ago) the hypomania ceased and I became my old boring self again and haven't had a single episode since.
I think I see glimpses of it in many PWP who like Peter, Evon and myself have it manifest itself in a myriad of different ways but still the common thread is that an agonist was part of the drug regime.
I wonder if any studies have been done to show a definite increase in on time with agonists vs without agonists?
I'm still very bitter that a drug that was meant to help the symptoms of P.D. robbed me of my normal self for so many years.
Regards,
Lee