Having very bad anxiety, got my ears pierced now worried about getting hiv even know they used a one time earring casset should i get tested ?

No: Unless you had unprotected sex, you are unlikely to have contracted hiv. Your level of anxiety, which you report you had previously, is now focused on worrying about the possibility of hiv. It is important that you address your tendency to worry. This can be done by learning relaxation techniques and becoming aware how your thoughts lead to the feelings of anxiety.