Always one thing after the other

I hurt my back walking today, it hurt so much but I pulled through and I got home and laid down, it started to get better than a really bad migraine started and that lasted for 45 minutes, then the migraine got better then I started getting a severe stomachache and nausea and I ran to the bathroom, I got sick and then throughout my back again and fell down and my migraine is back too.... I'm like shaking in pain