Suggest Treatment For Multiple Ear Infections And Fluid In Ears

I have been suffering with an imbalance issue for 6 years. I do not feel any symptoms while sitting or lying down or driving, My issue is when I am standing and specifically when walking. I have had MRis on my brain an neck, scopes up my nose and throat, ultrasounds, electrical testing on my muscles, eye testing, vestibular testing / rehabilitation and seen many Ents and all results are OK. Blood test are OK as well. Blood pressure is ok as well. I have been tested for MS and Parkinson s. All results are negative. My diet is lean protein and vegetables. I have had allergy testing and they have all come back negative for airborne and animals. I see a chiropractor 2-3 times a week. I am not currently on any medications. I have had multiple ear infections and fluid in my ears over the last few years. I have been Prescribed antibiotics in the past. They seem to provide a temporary relief. I am currently using oil and garlic drops in my ears as they found a yeast infection in my left ear. This has been a long and frustrating journey of imbalance that prevents me from being mobile and loads of tests that come back negative. The doctors all agree that there is an issue but have not been able to diagnose the root cause or corrective actions. Thoughts?