Advice Needed on Runner's Cramp

I'm sure most of you have heard of or have experienced that cramp under your right rib while running or doing any other kind of intense cardio. I used to get this annoying cramp under my rght rib years ago when I would run. It came and went. I've begun this new year re-implementing exercise and healthy eating and as I increase my interval running (via c25k) this darn cramp is back! And it has been here ALL week. It won't go away. I have some people telling me I'm breathing wrong, so I breath better; some say I'm dehydrated, I've been drinking more. My trainer tells me yesterday I've been drinking too much soda but I haven't had a soda in weeks! And even then it was about twice a week. I mostly drink water with the occasional mio or crystal light. He said I might be running too much or too fast which I think is ridiculous because I am barely jogging at 4.5mph and it's there. Yesterday I was just walking around my office at a fast pace and the cramp hit me. It's hitting me on the bike, eliptical, any kind of cardio and I'm getting this darn cramp.

Can anyone tell me ANYTHING about this stupid cramp and/or how you were able to subdue it???