Could this be Bowel / Stomach Cancer

Hi all

In about December my stomach started playing up, i had one day of diarrhoea that did go quickly.  Anyways since then all day every day my stomach has been making loud and i mean loud gurgling / rumbling noises.  Everyone around me can hear them and its worse after i have eaten but they are there all the time.

Before Christmas i did go and see a GP (not mine as he was on Holiday) she was very dismissive and although she did a physical check of my stomach bascially sent me on my way and made me feel like i had waisted her time.

So on to today..the noises are still there louder than ever and show no sign of going away.  I am going to make an appointment with my GP but waiting times are about a week, I am 41 year old male by the way.

Could this be a sign i have bowel / Stomach Cancer? Dr google is freaking me out and i am conviced i now have that.

Thanks for any input

Chris