boyfriend hasnt been sympathetic to my newly diagnosed ADD

My boyfriend and I live together we are in a mature relationship but my ADD is causing a strain. I know my boyfriend cares about me because he has been theone supporting me He was the person who convinced me to get myself checked for ADD. I have been having a reallhard time remembering things that are important to the relationship and trouble focusing. He has been having very little patience with me recently and is wanting to call me stupid and say it's not just the ADD. I feel so hopeless and pathetic because he's told me he loves me but can't see this working. He says hasn't broken up withe because I'm pathetic. I really love him and I am sorry for causing him to lose his faith in me and us. I haven't gotten my medication for my ADD yet and I feel like he isn't going to wait to see what kind of results it will bring. I have been so frustrating for him and I wish I would've found out about my challenge sooner.