i have a serious pain in my stomache, it was near my belly button but spreader out. it hurts to walk and lay down. i am constipated too.every postiton i am in hurts and if i stay still after awhile it doesnt hurt but it gets numb. every here and there the pain stops but then it comes back. i tap and touch my stomache and instantly it hurts and theres shooting pain. at my lower right side it was all stiffen and tight but then i randomly felt a squishy part. i am thirteen and i dont know what to do or if i should go to a hospital. what do you think is wrong with me and what i should do?