IBS or lactose/gluten

So for the past month or so I have been having a lot of stomach issues. I have all the symptoms of IBS. Out of no where I’ll get really really bad stomach cramps and it’s really effecting my everyday life becuase I don’t know if I’ll be needing a bathroom but most of the time I need to go I can’t go, or I’ll have diarrhea. It’s one of the other no in between. I’m going to be talking to a urgent care nurse later on today to see my options as I don’t have a primary care doctor so I’ll see what is going on if it’s a lactose thing or something more serious. Anyone with IBS what have you done before you were diagnosed to relieve your symptoms so it doesn’t effect your job or even basic things through the day ?