Hello My Name Is Priscilla I'm Currently 5 Months Pregnant

Hello my name is Priscilla I'm currently 5 months pregnant and suffer from acid reflux disease and nerve damage and arthritis in my hands and feet my feet are swallon and I cant take my medication I don't know how long I can work my work is threatened me to fire me and I can barley walk because of my conditions its getting so bad they are sweaty swallon itchy and feels like little tiny cuts all over my hands and feet they hurt to moved I can barley open and close them. My toes are starting to turn white when I wear shoes I don't know what to do I can't work. They hurt so bad...my work is so busy i work at a dollar tree and the people that come in are mostly drug addicts and one through a candy bar at me i dont feel safe there and i feel at high risk i cant keep working on my feet I need help