I'm not sure if this is the right forum to post this question but here it goes. I was at a party a week ago with some old friends and got offered cocaine. I ended up taking 3 lines using a rolled up banknote that was also used and shared with a few other people there. There wasn't any visible blood on the banknote that I could notice if that helps. Also, this is not something I tend to do, it was the first time in years but the people I was around are frequent users. I am just a little bit worried if I have put my self in some sort of risky situation in contracting a disease.
So my questions are:
Does this pose any risk on me for any diseases at all such as Hepatitis C and etc.?
Do I need to get tested for any related diseases?
I appreciate anyone who takes the time to answer me and I will definitely provide more information or clarification if needed.
Thank you so much.