Hope you manage to talk about this with your new T, I'm sure she wouldn't mind. It's a pretty normal reaction to grieve the loss of important people in your life, and Ts are usually important to people. Maybe it might help writing it down instead and either reading the note to her or letting her read it? That is easier for some people.

Also, just a tip regarding the headache: that might be because you lost a lot of water that you didn't drink afterwards, at least that's the case for me. Maybe upping your water intake helps with that.