So hey I'm 17f  have an anxiety and depression and unfortunately I have a lot of pain and anxiety attacks and I'm also in a relationship with a guy that doesn't know what I feel because in his words he never had anxiety/panic attacks. 
He tries to help me feel better but he wants me to tell him and express what I'm feeling and what is the cause of this (some times I don't really have a reason I'm just starting to cry and have a heavy breathing). 
And I don't know how to tell him those things without feeling awkward because I don't know how to express that.. 
Please if someone here can help me please do because I'm feeling it's effect my mental health badly..