I have this nagging pain on the left side of my stomach.?

It's kind of aching and comes in and out, and it's really, really annoying. I've felt this kind of pain before, but it's a little worse than what I've felt in the past. Any ideas, and do I need to see a doctor. Cause I go a lot and I hate calling because I feel like sometimes I'm wasting their time.
I also don't know if it's my anxiety, etc, because I do get random aches and pains, but... I don't know. Please help if you can.I have this nagging pain on the left side of my stomach.?
If you have this stomach pain for many days, call the doctor to make an appointment. He needs to check your stomach.
Try Buscopan for stomach aches and pains