Hi Blue Bird, thanks for your post.
In addition to what others have posted in response, I would also add that while you are only doing it a couple times a week now, it can easily escalate, and become out of control. I went from doing it (when I first started, in my teens) weekly, to at times doing it 15+ times a day. That perhaps sounds bizarre or absurd, but the complete truth. And twenty years later, I still struggle, though I have now been purge-free for over two years, yay.
I wish you the best. And yes, I believe you should talk with your therapist about it. You never know how helpful they can be, at the very least a listening ear to help you sort through it.