My 9 month old started projectile vomiting 2 hrs ago and anything i put in her mouth she has vomited. her temp is 36.5 but she is weak and i don't know what to give her to help?

Seek emergency care: “Projectile vomiting” by a 9 month old baby should be evaluated in a pediatric emergency room ASAP.

Concerned!: Sudden onset of true projectile vomiting is not normal, along with her seeming "tired". I would try giving her ABSOLUTELY NOTHING for 2 hours, then try only 5cc (1 tsp) of Pedialyte. If she keeps that down for 5 minutes, give her another 5cc, continue administration every few minutes.If vomits first 5cc after the stomach rest, then go to ER for evaluation-could be something called intussusception