How important is a rabbits schedule?

Question
Hello,
 Our family has a much loved holland lop. Even though dad wasn't all that happy to have her he now is so in love with her and kiss her goodbye before me!
 My question is, how important is keeping on a regular schedule with our bunny? She is 2 1/2 now and she does have a very specific schedule and pattern of her special areas. I can track them within 5 min.  Last night our entire family all had separate obligations and no one put her away. At 2 am I herd her under my bed thumping, I got up and went to check her cage and she ran right behind me. The cage was closed, I opened it and she jumped right in.
This morning she is acting very different. She is sitting in spots she never goes to and she will not eat any of her favorite veggies. I gave her a tiny amount of lax but I am not sure she got much if any!(it says rabbits like it, but not her), I lost a bunny due to constipation before, so I want to do what I can now! Our family will be  distraught if we loose her
I was wondering if she was upset because her schedule changed instead of constipation. I am making an appointment for the vet tomorrow!
I would appreciate any insight. Thank you,

Dara

Answer
How is your bun now? I assume she went to the vet?

Rabbits do like schedules but missing some here and there don't usually do too much harm. My two don't kick up a huge fuss if I have a lie in at weekends (as opposed to 7.30am breakfasts on weekdays). They do certainly know a routine though, where to go when breakfast is ready, when to go back into their run to make me give them a treat as a reward, etc etc.

Both of mine are prone to gut upsets, but triggers there aren't related to schedules, more to eating things like too much wet spring grass if I'm not quick enough to ration their grass time.

I would not think it was the schedule upset that caused your rabbit to not be acting right, it could be more like she may have eaten something she shouldn't, or not have had access to her water/hay if her usual cage was closed.

Fingers crossed she's doing better now!