My T encourages me to call her whenever I feel exceptionally bad (it doesn't have to involve SI/SUI urges). I never do (well, I did once but that was during office hours) because I'm afraid she'll tell me to do x or to talk to y and I'm far too tired for that.

Edit: and I don't call when I don't think there's anything that she can do that helps, even though she's told me she'd like to just 'be there' for me.