Same as me , for a few years to over last three months I've got very sick , and everyone on here seem to have same symptoms , I'm scared its some bse epidemic surfacing
Have you had blood work done to check Ferritin, D3, magnesium and B12?
I would suggest seeing a neurologist, if you haven't yet. It sounds more neurological than anything else. If you put the symptoms together the only thing that doesn't necessarily fit is the pain in your back, which could just be an underlying symptoms from your body's reaction to your other complaints. Or I would go see an ophthalmologist not an optometrist.....you could have an eye disorder. And if the zofran isn't working for the nausea I'd ask for phengren. It's also a nausea medication. I'm on both, when you take a medicine daily you build a tolerance. So if one doesn't work for me, I switch.