I'm a Chinese(18 years old) and just received an injection of TAT on 24,2,2013 at a local hospital.During my injection everything's ok.but when it was almost over , I heard a sound like something was fractured ,and I'm sure that's syringe needle. The nurse said nothing after that so I went home,but I just can't stop thinking back that . Because now 3weeks later i sometimes still feel swell (hardly feel pain).So I plan to have a X-Ray test but the problem is that I have been afraid of radiation for years and I know it may cause cancer ,especially when my injection site is the upper buttock where there're digestive track and other important organs like bladder. I really don't know what to do next , to have a test or not?please help me ,thanks!!