Definitely get the tests done of there is any question of there being a higher level of health risk going forwards. But if your motivation is more about "getting answers" the process is likely to disappoint, you may never get any explanation, or any definite answer. You might, however, benefit from a longer conversation with a good dr or even some counselling to help you process what happened & the impact it has had on you emotionally & psychologically. Sometimes talking it through can help you get to a place where you are happy to let it be.