Hello Tayt: Thank you for bringing your question here to PC. I don't have an answer for you. But, since this is your first post, I did want to at least welcome you to Psych Central. One additional forum, here on PC, where you might consider posting with regard to your question would be the other treatments forum. Here's a link:

https://forums.psychcentral.com/other-treatments/

And then here's a link to a blog, from Psych Central's archives, on the subject of TMS, a link to an article, by our host Dr. John Grohol, Psy.D. on the subject of bipolar disorder, (this article also provides links to a number of additional related articles), & one other bipolar-related article:

What is TMS? | Depression Treatment with Transcranial Magnetic Stimulation

Bipolar Disorder: Symptoms, Types & Treatments

The Biggest Lesson I've Learned in Managing My Bipolar Disorder

I hope you find PC to be of benefit.