Okay so let me start out by saying that I am a 16 year old male who has worried about my health for years and years. I am a fairly athletic kid, I run track and have recently picked up weight lifting to further my career in track. But the past two weeks haven't seen much working out due to my little issue. I am terrified that I have one gruesome disease or another. This time it's bowel cancer in my head. Lovely right? Here's the story. A couple of weeks ago I was volunteering at my church for a kids camp. Now because of the schedule that I had to keep up with, I didn't have time to sit down for a good meal. I relied on fast food for 4 or 5 days. Then around Sunday and Monday the next week, I noticed I hadn't gone to the bathroom and my stomach was a bit upset. I just thought I was constipated and I believed it would pass. I took a laxative and drank some prune juice and just waited. Here's where things got bad for me. I was having very small pebble-like stools and it felt like an ab workout trying to force them out. I couldn't have a normal bowel movement. Now it's a week later and the same thing is happening. Having to force out several pebble like stools never growing in size. I've never had this before. Bowel movements have never been difficult to me. Panic began to set it. I've lost my appetite and have become depressed for the past week. The weight loss from not eating isn't helping my anxiety either. My parents dismiss it as it all being in my head. I'm not old enough to act on my own so I have to rely on them. I don't have an appetite and I haven't had a normal bowel movement in over a week. Constipation and small stools and a loss of appetite are all signs of GI cancers (colon, stomach) and I'm terrified that I have one of these. I need advice. I can't convince my parents that I need a doctor and the growing anxiety is making me nauseous. I don't want my life to be cut short because of some disease that's so rare in teens that nobody even considered it. Thank you for your time and help.