Dealing with IBS and Constipation: Need Advice

My IBS lately has been more focused on Constipation. I’ve literally gone a full week without a bowel movement and it’s incredibly painful. I haven’t been to the doctor because every time I go they tell me to “eat more vegetables” and I was literally told I’ll outgrow my IBS by the time I’m 60, so I don’t want to spend hundreds of dollars to be told that. I occasionally take Dulcolax, but lately that even hadn’t produced a bowel movement for me. Does anybody know how to help ease constipation? I’ve tried eating more fiber, and I’ve introduced a workout regime including yoga poses to help the body. I don’t know how else to help my body.