I have had gastrointestinal issues and have had endoscope, colonoscopy and stomach x-rays. I am scheduled for further tests - ultrasound with abdominal wall injection on June 20th. Severe right lower abdominal pain 24/7. Last night I got very sick and vomited up very dark green matter with a lot of mucus. I have eaten nothing green in weeks and weeks...mostly bland foods. Should I see someone in my town or wait to see the doctors at Mayo Clinic later this month? The pain is severe but I take no prescription medications for pain due to allergies.