New to this Site, been looking for help in what I believe is a Husband with ADHD...Bad!

I have been married for a year, to a man I have been dating for about 7.5 years, and yes I did notice some things before we were marriage. But since the marriage they have become more noticeable. During our dating years, unless we went on vacation our visits were normally 1-3 times per week. We did not always stay over night or spend the full day, but their was always a question in my head... Why do you have to do that, and why now? I noticed how impulsive he was but when I questioned the why's he would always say, I just gotta do it now. Well, the other thing I noticed during those years was job changes, lost wallets (at least 10 times a week), directionally challenged (he came to my house for almost 2 years and still got lost), confusion, always thinking too hard, eating way too much (he even gets up in the middle of the night to eat) and if we are in a hotel, there is no sleeping in because he had to eat and I had to do it with him or he'd throw a flat-out two year old's tantrum. Things are different now...

We lived together, and we are married. He leaves running water on and walks away from it until someone gets home, he stops in the middle of the street while driving if he gets confused about where we are going, even though he's been to the same place 100 times, he leaves towels on the stove while its lit; burning the towel and he will blame it on someone else in a minute, he has been asked for many years and I know this because his room-mate said, "will you please remember the recycle goes in the grey bin, not the rust colored bin... He always puts the garage in the green, the recycle in the garbage, and he just gets things mixed up no matter how many times he's shown the correct way to do it. He's dangerous and my 14 year old son even notices. I have talked to him about it and asked if he can try and get help and he says I don't know how. He didn't believe me when I said, "he has signs of adhd because it was for kids. His mom, and brother's have been laughing at him for years, just calling him stupid. When I told his mother she should have gotten him help long ago, I of course turned into the busy body who knows nothing, but she whispered and said, "is he still loosing his keys." He loosing his keys daily, and they are always in the same place. When he looks for them and I am not around he panic's, he never sleeps and collapse's when a week of this non-sleep goes by.

I don't want to leave because I really love him, but I will tell you this whole job thing has turned into a crisis. I promise you all this, he has had 60-65 jobs in the past 6 years since 2005. He has had 80-85 jobs in his lifetime, he's 43. He's all that most women would want in a man, but he's got ADHD... What do I do when I feel like sometimes I am dealing with a child. He seems clumsey and confused all the time. I get so irritated when I have to tell him another time how to get to the mall which is less than 10 miles away. I'm even more upset, when I have to tell him where to pick up my son from school which is less than 3 miles away. I'm trying, but I am loosing my patience and I love him. What can we do?