HELP!! what should I do.

Okay so I need some help on what I Should do. I used to cut my wrist, I'm kinda on an off doing it. Rn I quit Bc my parents found out and my friend wants me to quit. For the last month or maybe a lil longer my arm has been tingling and hurting. I went to a doctor after about a week of this. She said it was probably just a compressed nerve from laying on it. But I don't think she knows about my little issue. Do u think this is related to my cutting?? Should I tell my doctor that I used to cut.  In case u were wondering I only feel confortable about sharing this on this app Bc no one on this app really knows me and I really need some advise. I'm only 14. I started cutting when I was 13.