Zoomer925, your post totally describes my same symptoms. I'm curious on how effective the Botox treatment is. I too read that surgery is a last resort, I agree. I started taking B12 and Magnesium as well along with herbs to calm my stress level down. My issue started about 1 month ago and so far I'm hunting for answers, like yourself. I saw an ENT that pointed out that I was clenching my jaw, perhaps at night. The ENT said that clenching/grinding will cause pressure on your inner ear, thereby causing ear pain, loss of hearing, ringing and inflammation. He suspects that that could cause the ear spasm or Tensor Tympani Tremor (The medical term) Tensor_tympani_muscle
BTW: in that same link, I've found this: on wikipedia , Tonic_tensor_tympani_syndrome

which if you google: Tonic_tensor_tympani_syndrome it leads to
a web site called: hyperacusisfocus.org

That being said, I confirm my ENT's finding with my dentist and he also agreed. So, I'm getting a custom mouth guard made by my dentist. In addition, I've started to cut back on caffeine and try to manage my stress levels. I'm a type A personality, so I tend to push myself a bit too much.

I've read in this forum that when people put their index finger in their ear, the spams stop. That's the same case with me as well. I suspect that the index finger in the ear puts pressure in the surrounding muscles and stretches' that Tensor Tympani and stops the spams. It's just a guess, but for this past month, I'm leaning towards stress as influencing this issue for myself, but not the root cause. Still working on that.

btw: does your ear spasms stop or is it always happening?

My backgrounds is Electrical Engineering, not a medical doctor. However, I just wish medical doctors were as willing to solve/troubleshoot issues as trained Engineers are.