I am in my 20s and is very worried about me maybe having autoimmune hepatitis. I had a ANA test come positive and my vitamin d was low. I have weird symptoms too such as easy bruising, fatigue for a few years, my hair seems to fall out a lot more than usual, my knees turn red and get hot, when I sweat I get itchy, I constantly yawn a lot to fulfill a breath, and sometimes my blood pressure gets low. My stomach also rumbles a lot. I'm scared it might be my liver. I don't know if they checked my liver function but the doctor said she was going to give me liver function tests cause at the time I was worried I had hepatitis b. I'm not sure if she ever took them but she said everything came out fine. Can somebody help me and tell me about autoimmune hepatitis.