Wow, did this discussion ever snowball. I guess because most of us, if not all, struggle with thoughts of self harm and suicide. I believe SOL, that your telling your T at the end of the session was either manipulation or wanting help, but not really wanting to talk about it. I know I said this early in the discussion, but here goes again. When I was self harming and the time I truly tried to commit suicide...I told no one. During my breakdown I was taking handfuls of pills when I would feel suicidal. Somehow not taking enough to actually kill myself but knowing it was harming me kept me from going all the way. It took a long time for me to tell my T and when I did, I told him at the end of the session. Why? Because I wanted help, but I didn't want to talk about it. It was a relief when he said "Well I wish you hadn't brought this up at the end of the session. We'll talk about it next week." The fact that you were angry that our T did "nothing" about it suggests that it was more of a manipulation.
That is ok. He would understand that as a cry for help. Your self harming and your cry for help with it are both things that you and your T will work thru. It sounds to me like he has a pretty firm grasp on your motivations and won't be pushed around by them. That can be a real blessing and help to you. Keep working on it and KUDOS to you for being honest with your T, whatever the motivation for it was.
As far as legalities go.....Psychologists in the US are doctors but not MD's. Now, appearently (thank you gdf), in some states they can prescribe meds. Personally I think that is a good idea..I hated having to go from my psychologist to a pyschiatrist just to get a prescription. It was one more hoop to jump thru, one more person I had to talk to that I had built no trust with. I felt like a lab rat.
Anyway, I have had my "drs." from, psychologists, to pyschiatrist to therapist (who does have his doctorate BTW) all tell me that they are legally bound to do something if they "believe" (the operative word here) that I am going to "harm" myself or others. My T also believes that is a "moral" obligation. I take that to mean that I don't have to say anything, but if my symptoms show that I may do something along those lines they would be obligated to take action on my behalf. Conversely, I could say something about feeling like I want to harm myself or others and if my T did not believe that I would follow thru with it, that I was just spouting for whatever reason, he would not have to take action. Again the key being what the Dr/T "believes" I will and am capable of doing.
Even so...nobody can stop another person if they really want to hurt or kill themselves. And if somebody really wants to kill themselves...they are not going to tell anyone because they don't want to be stopped or helped. It is our own choice and our own responsibility to decide if we want to push thru this hell or give up.
It is your choice SOL. Sometimes getting angry at our T is just displacement of the anger inside us. Again, KUDOS to you for telling your T. That means that you choose to get help and to push thru. I know how hard it is, I know that sometimes you want to give up, I know that sometimes the only way to at least relieve some of the pain seems to be to hurt yourself. I don't understand why it does, but the reality is that it has helped you stay alive for today. Keep working towards wholeness, keep asking for help and you will get thru this to a better you.
Good luck and my prayers are with you.