I was poked with a needle while taking out garbage at a Medical Clinic. They improperly disposed of the needle, what should I do?

This happened on Tuesday the 1st of November. I was taking out garbage at around 10 pm and while closing the trash bag was stuck with a needle. It was thrown in a normal garbage can. I called my boss and she told me to finish my building first if i decide to go to the ER. They tried to throw the needle away in a sharps container after the fact, instead of keeping it for testing. I did get blood work done, but have been a wreck ever since. I won't know for 5 months the end results.