I have terrible anxiety sometimes it hits me out of nowhere. i can't sleep i instantly get diarrhea and feel sick ill just wake up with it. any ideas?

Anxiety: Anxiety can cause many negative symptoms. Try to focus on perceiving accurately as anxiety is often caused by misperceptions. Consult with a mental health professional to help understand the origin of your anxiety and learn how to develop new, more positive coping strategies. Best wishes.

Get help 4 symptoms: Sometimes anxiety builds on itself, or on the anticipation of an undesired but associated outcome (like diarrhea). There are almost as many approaches to address anxiety as anxious people. Ask your doctor to clear you medically, then once reassured that you're okay, seek help from an appropriate counselor/psychiatrist/clergy/confidant and move forward with the rest of your life. Be well--.

Seeing a doctor?: This sounds like panic disorder. I would recommend speaking to a board certified, licensed psychiatrist or physician in your area.The severity of your anxiety, and the symptoms that you experience will be helpful in diagnosing you. This is a treatable issue ; seek professional advice face-to-face. Best wishes and good luck.