My fiancee doesnt speak English, and i never had the opprotunity to learn how to explain ADD to him, or my memory problems either. I really feel it would help because sometimes when we get into arguments he will say "well remember when u did this?" or "remember when you said that?" and im like uhhhhhhhhhh no?? but its not cuz im tryna be a jerk, i REALLY dont remember. Like i mean i cant even remember when i pour myself a glass of water or OPEN A WINDOW in my car! Its pathetic, please any advice?

I am unsure what you are asking advice for - Are you asking advice on how to explain ADD to your boyfriend? I am assuming you are able to speak his native language so I do not think explaining ADD to him in non-English would be much different than explaining it to him in English.

I tell my husband my brain has a mind of it's own. . . . it remembers what it wants and forgets the rest and I have no conscious control over what gets remembered and what doesn't. When you are arguing unless you are arguing about what you said or did I am unsure what difference those things would make which is why I am guessing you are asking about how to explain ADD. . .

Google has a language tool that can be used for web page translations. You can pull articles up on ADD and have google language tool translate them into his native language so he can read the articles explaining ADD

Hope this helps :)