Amoxicillin and medicine

18 yr old female here...This is my 5th day taking Amoxicillin, it was my first time taking it, didn't get a allergic reaction yet, this medication makes me feel nauseous all day, i can barely eat a whole plate of food, i only eat 1/3rd of it, i feel weak, depressed, unsteady, a little itchy, and i got gassy this morning and farted a lot lol, i had mild diarrhea, i think i might've gotten a yeast infection, and i just feel gloomy and quiet, i feel distant and i have to force myself to get out of bed and do anything, eating is the worst part i force myself to do, i also became sensitive to bright light and noise, and it made me feel unsteady like if i was going to pass out, i am using this medicine to treat my ear infection because i get vertigo from it. I have Menieres Disease...