Hi there. Thank you for your question. I will be helping you out with your queries
Since how long are you having this problem?
What is your age and gender?
Do you have any other medical problems?
Are you on any medications for anything at the moment?
Please let me know.
Are you an anxious type of personality?
How are your bowel movements?
Taking into context your entire situation your most likely diagnosis seems to be what is called as irritable bowel syndrome.
Have you ever heard of that before?
The other possibility that I would like to rule out with the location of your pain i.e. left lower part of the abdomen is diverticulosis.
This can be definitively ruled out by doing a colonoscopy
So two main possibilities:IBS Diverticulosis
Bowel cancer is not a possibility here
You are most welcomeWish you all the best.Please do rate me for my services by clicking on one of the smilies below.Kindest regards