Hey B.!
I'm with ya on this one. My twins are 4 yrs old, and we have the battle of the nap/rest.
When mine acted like that, I wouldn't go into their room unless I absolutely had to. I used the baby monitor, so I knew if they were crying because they were hurt or not. Sometimes, they just don't want to rest...it's called fighting sleep.
I used to also have a cd player/radio in their room and played lullaby music or classical music (Baby Einstein) and they would be soothed by that. We just took it out about a month ago, since they would want to play & dance around to the music instead of having quiet rest. You might want to try that.
You might also want to try and get them to take a later nap. It seemed like Ash & AJ at that age, needed to more nap later and eventually down to one a day. I've found that playing outside or going window shopping, etc., seemed to help them settle down for a little bit later am nap. Just depends on what you see fit for your children.
I don't like to be at home all the time, so we went window shopping a lot when they were that age. Even falling asleep in their stroller or carseat worked for me. But I think I am out of the "norm"...Ash & AJ were socialized from the very beginning, but some children aren't. I was, and still am, very flexible when it comes to their schedule.
Also if you don't belong to a MOMS Club or Moms of Twins club, I highly suggest it. It is a great source of support and you won't feel so overwhelmed, because there will be other moms that are going thru the same thing. The Mom of Twins club was my saving grace!!! :)
Hope that helps.
Take care,
God Bless,
J. D
Blessed Momma to Ash & AJ ~ 4 yrs old