I have been dealing with constipation for a long while. For the past 5 month I had taken laxetives 4 times, each time I vomited while my bowel moved. I stopped the lax and went to a colon cleanse and began drinking hot unsweet green tea. I began to help move them but my stomach began to distend. The past 4 days it has been getting wore with feeling full, having pressure, sharp pains at times, and not being able to eat much. Beginning yesterday, I became nauseous after eating. What could cause these symptoms and what can I do?