Sorry about your predicament. It's been making me think and I don't know if there is any value in what I concluded, or who you can talk to to see if there is any validation but here goes. Please bear with me through the waffle.
I don't know about pd meds as still being considered but I also have epilepsy and although I prefer to control it through avoiding triggers it did get bad enough where I gave in and tried the meds for a while. One of the meds side effect s was to really louse up emotions and made me go really weird, I lived on the edge of hysterics all the time I took it, nearly a year. It nearly wrecked my marriage and all. Researching it I found it was nicknames the angerdrug and was even taken into consideration if you ended up in court because of what it does to you.
I don't know if pd meds can do the same sort of thing, but they are doing things to the brains chemistry and I know some can cause compulsive behaviour, so it would be interesting to know if you can find out if the meds have any reputation and if you can get them considered by the powers to be.
I don't know how you can find out though, maybe the helpline would be worth a visit.