Hi,
You are facing psychological issues i believe and it should not be a matter of concern if you were having everything normal previously then it should be still fine.You are just stressing your self up.
You did not tell me much about your spot and neither about your sexual status,if you do not have any discharge or any pain then it should not be std,you should probably wait and watch it for a few days,if you have any symptoms like pain,discharge or ulceration or raised area,or if you have itc ...
Read Complete Answer