I'm so tired and overwhelmed

I'm new to this whole thing and my husband is not being treated. I dont think he thinks it's a problem but after my  counselor suggested he might have ADD which he had as a kid and he hates meds, but when researching ADD and marriage I'm like a lightbulb went off. The whole hyperfocus dating where I felt like a queen and now am soooooo lonely and so hopeless and just frickin overwhelmed. i have no idea where to start and I'm so over it. I know there's a person I loved somewhere in there but I'm tired and feel almost done. In addition to the ADD we also are dealing with a blended family. I don't know how to suggest to him that this is a big issue. I also may suspect that he might have slight (if possible) RSD.