Yes please email her, you must confide in your mother, she LOVES you unconditionally, and she probably has no idea how bad things have been for you, she will want to reach out to you and help as much as she possibly can, being a mother myself I know she will be there for you, don't be afraid, you are one of the most important people in her life, she will want to ease your burden, hug you and help through it all, trust me, I feel sure she will react this way, even if initally she may be upset and a little angry, know in her heart she will be hurting for you and she maybe bewildered and not fully understand your need to cut, but she will try to understand and work through it with you.

I really believe there is no greater love than a mother has for her child. , take comfort in knowing and believing that too sweetie.

I so pleased that everyone on PT has managed to help you some, but even though you may feel all is well again, you do need to confide in your family, they are closest to you, and need to know what is happening ok. Take care.