I see one of us edited my comment but yes, two years. I'll have to answer this one by one or else I'll probably miss something, sorry
What does it feel like when you've lost time?
I just blink. One moment I might be saying something or just sitting watching tv and the next moment I open my eyes and it's somewhere new or the situation has changed. Sometimes I feel kind of a shivering feeling on the inside, like crawling out and my head feels blurred.
Do you remember the last thing you were doing before you lost those 2 years, and what you were doing when you "came to"?
I don't want to trigger anyone so I'll be very vague here but yes I remember both.
Did the time loss feel anything like 2 years had gone by, or was it instantaneous?
Until I found out, by accident, that the two things happened two years apart I was sure they were in the same frame of time (like moments, days, weeks or
maybe months).
After those 2 years, how did you react when you found out it was 2 years later? Were your state of affairs in good shape (meaning job, school, bills etc.,) did it appear the alter/s were able to stay out of major trouble and function, or did they kind of mess things up?
I didn't realize it had been two years for a very very long time. I don't think I had the time to internalize that it had been so long and I had to just keep going. I was (luckily) quite young so it wasn't as traumatizing because life kind of just happens when you're that young.
Thank you for the respect! You seem like a good person to invest so much in helping your friend

Best of luck to the both of you!
- Nin