Hi welcome to HCMForum. As you think it has nothing to do with the anti biotics, as you quit it already 10 days back. It might be another infection probably of middle ear. The systemic effects of the infection might be the cause of your symptoms.
I advise you to consult an ENT surgeon for diagnosis and treatment. you may need to have an XRAY OR MRI
along with other routine tests for confermation of the disease.
Besides i advise you to follow some diet recomendations as Avoid taking potato tomato sea foods ice water fruits and juices. Wishing for a quick recovery.Thanks for calling.