I am 55 and was diagnosed about 8 years ago. Over that time my meds have been gradually increased, with a certain amount of trial and error along the way, until I now find myself on quite a high dose of Sinemet (levodopa), plus a cocktail of azilect, amantadine and Neupro patches.
All along my consultant has done her best to make sure I get as much benefit as I can with the least side effects possible and as a result of this I have managed to maintain a reasonable quality of life. I'm not saying I don't have issues and difficulties and times when I get down but mostly life is still very much worth living.
I'm now getting to the point where increasing my drug intake is going to produce too many side effects so the possibility of DBS is being discussed. If I'm suitable and it's successful I believe this could give me at least as long again before I'm back to the same point hopefully by which time other options will be available.
I admit I am a glass half full kind of person but I would just like to say to you and your other half that the future doesn't have to be black, maybe not quite so rosy as you planned, and you will have to make adjustments but on the whole I'd rather be alive with Parkinson's than six feet under.