throwing up mice!!

[ericschuh00]

My columbian red tail boa who is fairly new keeps throwing up the mice i feed him about a week after she eats. Shes about 1.5 ft. Yesterday was the 3rd time its happened now and since I bought her she hasnt completely eaten a mouse.

I think it is most likely stress induced or maybe the tank is getting to cold at night?

I handled her 2 days after feeding and she threw up the first time but this thrid time i left her a week and then changed out the water so i was messing in the tank and that night she ended up puking up a mouse from a weeek before.

Any thoughts?!

Thanks!!

EDIT- I should add that she is acting completely normal and not doing anything out of the ordinary for a snake (ie. stargazing, skinny ect.)