About a month ago I started doing alot of cardio in hope to help lean up this spring. Im slowly trying to build up my lungs to where I can run for a longer period of time. As of now I can only run about 4 minutes before Im about completely winded and have to walk a couple minutes to fully catch my breath. Every so often have gotten a "stitch" in my side but nothing too bad. But the last few times I have gone to the gym I get a "stitch" in my side worse and lasting longer than before and after only a couple of minutes of running. Im doing nothing different at all. Anyone know what causes this and how it can be avoided? Is it at all asthma related?? I always stretch good and walk at a decent pace for like 5 minutes before I even start to speed up to running. Any info will be appreciated.

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