In pain :/

Anybody know what the main symptoms of IBS is? (Irritable Bowel Syndrome) 
Have been peeing a lot more frequent and am getting pains just below my bellybutton. Almost feel like im bloated all the time and especially when i eat. 
Have been having the pain in the stomach for a while now although i thought it might have something to do with my nexplannon implant i have in for contraception:/