welcome to HCM!
after reading your query I think that there is a need to see a neurologist
and get yourself examined throughly. Had I been treating you I think an MRI
by brain will be very helpful in deciding the cause for your symptoms.
you have not mentioned your age, or if you are on any medicines, or your blood pressure.....you also need to check your BP and also go for blood tests.
these symptom, like popping sound followed by dizziness
, all point to a need to look at the central nervous system
. So, please see a doctor.
Hope the reply helps you
Feel free to ask more questions.
Dr. Manisha Gopal.