I'm 21 with a family history of bowel cancer. Over a year ago I started showing symptoms, but over the past few weeks things have gotten a lot worse. I'm constantly bloated, in pain, stomach aches and cramps etc. The symptoms range from a bloating to pain during sex. After being told it was gluten and various other things my stool sample came back with high calprotein levels meaning my bowel is "extremely inflamed" (doctors words) I'm waiting for a colonoscopy however over the past week everything has got worse. I can't do anything due to the cramping pain, I'm constantly opening my bowels every 20/40 minutes unless I take something. I haven't had a normal poo for ages I don't even remember the last time I did it's all mushy and comes out in tiny balls. I feel so weak I can't keep any food or even drink inside of me unless it's water. I'm now taking time off work and I feel terrible. I've had doctors laugh in my face when I tell them about bowel cancer in my family and how worried I am, I have other doctors concerned about it then others telling me it is not bowel cancer. They've suspected Crohn's disease however it sounds completely different to what I have. Everything happening seems exactly like what happened with previous family members. I'm scared, I feel alone as no one really does understand it. Feeling hopeless and not even being able to carry on with every day life. 
I suppose I'm asking for any other problems it may be? Has anyone else had this sort of fear or problem to find out it's something else? And how do I cope with this? I have no idea when I'll have my colonoscopy and get results so I don't know how long I'll be in this state and feeling like this.