Having trouble eating

Well, after my Dr. Have a bag of IV fluids at my first appointment and a day in the ER for 3 bags of fluids and a prescription for a non drowsy anti emetic I am no longer throwing up. I am still, however, ridiculously nauseas. I am struggling to force myself to eat. I have lost 15 lbs in under 3 weeks and I can tell by looking at my self I am continuing to lose weight and I am still so dehydrated. I am definitely drinking lots more fluids since I'm not throwing up but every bite of food I eat is pure torture. I don't know what else to do, I am beyond exhslausted both mentally and physically from this. I haven't felt good in over a month. I want to scream out for help and my poor husband is beyond frustrated.