Limits

I've been having bad migraines for the last few days. I cant look at bright lights and hear loud sounds. My neck has also been hurting but I thought I just slept on it funny. Last night it got worse. I sat in the dark for hours because I couldn't be in a light room. When I tried to sleep, my neck kept hurting. I slept a bit but woke up around 6:30am. I couldn't get comfortable. Even turning over in bed became difficult for me. Around 8am I tried to get up from bed. I couldn't. It felt like someone was jabbing a knife into my neck when I would try to sit up. I struggled for 20mins. Eventually I just had to suck it up. I sat up and cried from the pain. What is wrong with me? This is not normal. My neck was throbbing then I heard my mom come down the stairs from her room. I thanked god she was home. I told her I wanted to go to a doctor. She checked it out herself and asked me questions. She said I have Sciatica. Since I've been working several long shifts lately, my body isn't happy. For some reason, something is pressing against the nerve. My mom said to walk around a bit and try heating pads. I've never felt this kind of pain. I can't lay down. I can't swallow without wincing. I can't look left and right. I can't enjoy my days off work. Why does this have to happen to me?