Vomiting all day after having a bowel movement

Patient: March 23, I woke up, had a bowel movement and began vomiting right after all day. Felt better in late afternoon. I felt fine March 24, but did not have a bowel movement (normal). Woke up on March 25, had a bowel movement and again started vomiting lasting until the afternoon. I have not started or stopped any medications. I suffer with chronic back pain, anxiety disorder and have had ulcers in the past. My life is very stressful right now. Don’t know what is causing this though. Please help. Thank you.

Doctor: