Apt
There's another way to think about this. You may be doing your T a huge favor by calling.
I was always loathe to call outside of sessions. After toughing out a serious situation, I told my T what had happened. He told me that I needed to call him for his benefit, if not for my own. That the nature of his work was to think about his clients outside the hour. That the biggest stress was learning to make that thinking productive, rather than stressful. That, at times, such stress couldn't be eliminated, but it could be managed. And one of the ways to manage it was to get the client to the place where they would reach out as needed. That knowing the client would reach out relieved him of the need to be concerned.
And you are so worth it. Maybe you can't believe it, but don't forget it.