Hi I hope someone can help me. 

I have had a pain in my stomach, like severe cramps which stops me in my tracks. This first time this happened was 2 months ago now and has happened once a month so far. The pain comes and goes through out the day and lasts for about 24 hours. The other symptoms I get is the feeling of needing to go the toilet but nothing happens, then after awhile I manage to have some bowl movement. One is pretty much water. 

My major concern is this seems to have happened once a month now for the last 3 months. 

Any advice would be greatly appreciated.