Headstands Spiking Tinnitus

Hi all.

I've had tinnitus for a little over a month now and it's been kinda crazy.

Today I had a yoga class and we were standing with our heads down for like 5 mins.
Suddenly my tinnitus just spiked like crazy and it took a while for it to return back to baseline.

Have any of you experienced anything like this?

I'm starting to think that I got liquid in my middle ear or something like that, I can hear cracking every time I open my mouth basically...

Any input ?

 

Don't do head stand? Or to be more precise downward facing dog.

 

It was the forward fold. But held it for like 5 mins.

I work out at least 3 times a week and run almost every day, it normally causes the T to go down.
I'm just wondering why it spiked because of me being on the head..
I'm thinking i might have a filled middle-ear because of it.
Has any of you had a similar expenerince?