Hi Quantum Cookie!!
There are numerous adult sufferers on this board, myself included. Many of us suffer from less severe forms of MD than Duchenne's, but can definitely still understand what you're going through.
If you are willing, please post more details and history so we can better understand your situation.
I have posted my history before so I won't bore you with it again.
Welcome to the board. There are some really nice and understanding people here.
Kathy