Never discussed the above with prevous therpaist due to concerns that she would think I was still suicidal.
While I don't currently think I'm at any risk and these thoughts are now a lot less frequent, I would like
to talk about it or at least possibly write anomynously about it just for closure and relief.
Suicidal thoughts are a significant part of your condition. Therefore, your desire to speak out is natural and logical.
Could you predict your current therapist's likely reaction?
I told my therapist about my suicidal thoughts. I told her I didn't think I would actually commit suicide. And she didn't insist that my intentions were serious.
So perhaps your current therapist would agree with you too. Especially since you say these thoughts are in the past. But of course, I don't know your therapist, so I can't predict how they'll react.
Of course, you can disclose this anonymously. It can be easier to disclose something anonymously than to someone you know. I'd assume that the rules of this site probably allow you to disclose this.
But if you feel the urge to disclose suicidal thoughts, then you really should close this gestalt. Because it really matters.