I've hade a full hyst. about 5 1/2 yrs. ago I am 36 yrs. old and I have had slight cramping every now and then but for the last 5 days the pain has been unbearable. What could it be do I need to go to the doctor, And also every now and then I get like a muscle spasm (I think ??) in my stomach below my ribs or sometimes in my pelvic area (lower Stomach) I freaked out I had endometriosis and that's why I had the hyst. what should I do???