Ear pressure and popping, vertogo and fullness in left ear for weeks. doctor looked in ear and said looks fine but now have clear discharge. could be infection or something else? worried about csf leak - is that a possibility or unlikely?

Ear popping : Sounds like a Eustachian tube dysfunction, but the discharge is concerning for infection. It is best to have this evaluated by an ENT doctor, if not a primary care doctor is able to help. CSF leak is probably from your google search, these leaks happen usually from major trauma or surgery to the head.

? infection: Agree with Dr Romano. Most likely infection within inner ear, as stated. The fluid can be tested to show it is NOT CSF, which appears to be a trendy diagnosis online, but is actually relatively rare. Return to your doctor and get this handled.