Tinnitus is definitely a migraine issue for many people, so as concerning as it is, you're not alone. Not sure if you've seen it but there are plenty of stories and clinical info in the archives:
https://migraine.com/search?s=tinnitus
I'm sorry for all the changes you've had to navigate, along with your other health issues. I can only hope that as you tackle the next few months, you'll get back to feeling more like yourself. Happy new year, Rebecca! -Melissa, team member