I think it is highly unlikely they are integrated, and more likely that they are hiding. I am now mostly integrated, and in my experience there was a huge difference between when alts were 'hiding' and when alts were integrated. When I lost temporary contact with them (without integration) there was a lonely and awful silence within. Like you are experiencing now I didn't have access to any of their memories or emotions - they took them all with them.
Post integration was very different. It was more like they were with me constantly, within me, and I had all the memories, feelings and characteristics that one belonged solely to them.
Put simply - when they were hiding I was much LESS, and when they were integrated I was much MORE.

What to do next? One thing I learned over time was that when they went into hiding there was always a very good reason for it, even if I wasn't aware of it. The other important thing I learned over time was that they always came back. I learned to trust them and accept what 'was' for the time being. Eventually the reasons always became clear to me and I usually discovered that the decision for them to go into hiding for a time was the wisest one for them to make at the time.
Hopefully you can relate to some of this and it helps you in some way.