So. I went to the GP the other day and ended up having blood tests, because some 'weird' things if you put it that way, were happening. These things consist firstly, of a lump in my right leg just above my knee. It's painless. Don't know anything else about it really. But I decided to have a look at multiple websites for symptons, after I spotted the lump, you know, just to be on the safe side. I notice I present with quite a few of them. 

I've been getting random nosebleeds on and off for about 3 years. Literally out of nowhere. I just had one actually not about 30 minutes ago, and there was no cause. Sometimes I end up with 3 in a day, sometimes I go 3 days without one.

One of the more recent symptons I've discovered, which I read up on website suggests bowel movement. This only started just over 2 weeks ago. Can't really explain more than that really. It's as it says on the tin.

And generally just a few other things such as bad headaches, occasional dizziness etc.

Now, I know this forum isn't really the place for any official diagnosis, but I am still awaiting my blood test results and am really concerned that it might be some form of cancer - Just wanted to know if you think this is likely or I'm just being paranoid?