My husband was also diagnosed with Mild (MCI). SOme of what you described my own husband does, but I haven't had issues wtih him not remembering where we live. I do notice he goes up and down on certain days. This morning was a bad day. Difficulty in paying bills on time, argumentative when I try to take them over, which I need and am going to do. You think you have time with this disease only to realize you don't as you don't know where they are in their mindset. I don't have the issues with my husband following me yet, or him worried there are people in our home, etc. so I agree with you, his tests my show mild, but it sounds like it might be more than mild. I think the best you can do is be as honest as you can with the doctor, so you can determine, how you proceed. I don't know if your husband is doing any infusions. Mine started lequembe, only in the 4th infusion, and I don't know if I see any results yet, but I'm not sure what I'm looking for.