Sayang, post-op side effects macam tu memang boleh jadi, especially after general anesthesia, a few of my mum friends had the same experience after their C-sections, rasa pening dan telinga berdesing for weeks. Tapi sebab dah masuk emergency dua kali, I think kena proper follow-up dengan your gynae atau doctor to rule out anything else, macam blood pressure drop atau infection, sebab health ni bukan boleh main-main. For the dizziness dan ear ringing, your doctor boleh suggest the right medication based on what's causing it, don't ambil ubat sendiri untuk ni. Hoping it gets better soon, and jangan ragu contact your doc if it gets worse okay!