Stomach (left side) hurts really bad when i ride my bicycle?

[Yellow cake]

Ok so this happens only when i ride my bike and it starts to hurt when i've ridden for five or six minutes. What could be wrong here? I have this problem for months now and i don't even ride that hard. I'm 17 btw. Should i go see a doc? what if he asks me not to ride? i don't want that to happen!!

 

[Jimbo Dean]

Could be a kidney stone? The bumps can jar it. Could also be that you are dehydrated.

Drink more water.