I Am A 51 Year Old Female. I Feel A

I am a 51 year old female. I feel a lot of stress in my neck and shoulders. I don't sleep well at night. I have been forgetful and can't think of certain words. I have recently been sick with a pounding headache and vomiting. This happened twice in a two week period. I have had a lot of stress at work for the last 6 months. I am concerned this has lead to a medical issue or will eventually lead to medical issues.