Good Morning Zep,
Your ENT is quite insensitive to make a remark like that. Have the blood tests and the MRI - they are standard practices for anyone having a dizzy condition that can't be diagnosed easily (like an inner ear infection, which usually the doctor can see on a visual examination). I have had disequlibrium symptoms for 10 years and still deal with my symptoms on some level on a daily basis.
Most dizziness problems are benign, meaning not fatal. But these symptoms can be scary, we ALL know that!
If you are looking for another opinion abour your symptoms after your MRI and blood work, you may want to see a neurologist. They also deal with dizzy conditions, and look at them from a different angle.
In the meantime, stay away from things like extra sugar, extra salt, and caffeine. I know it's hard, but try to relax as best you can because anxiety can also impact your symptoms, meaning the more you worry about them, the more you'll notice them.
You'll be okay.
Re: my ENT has really scared me 
