While Running Yesterday, I Felt A Sharp Pain In My

While running yesterday, I felt a sharp pain in my lower left abdomen that brought me to my knees. It happened again. I spent the rest of the evening relaxing with soreness, and woke up today exhausted, feeling like someone punched me on both my right and left side. I feel kind of dizzy and extremely tired. I am in great physical shape, and I work out daily. Thank you. (I am a 23 year old, male)