Spinal cord injury symptoms and conditions

I am thirteen and a female. I had throat inflammation, swelling of my sinuses, and an ear infection. The doctor gave me a cortozone shot and recommended a z-pack. About 2 hours after i took the first dose i got severe stomach cramps, nausea, dizziness and loss of hearing. I keep having to run to the bathroom because i feel like im going to puke. I keep sweating too and i feel hot and sticky. I hope the side effects wear off soon but after reading these comments i don't think i'll be that lucky. I don't plan on taking this again. The side effects are worse than actually being sick.