Diarrhea help!? Plz help?

About 4 days ago I started having diarrhea but didn't think anything of it, the next day I slept all day and had diarrhea after I ate apple sauce. The next day I went to football and was fine but today It started again! I have been drinking alot of Gatorade and I started eating solid food yesterday( since the start of it) I just need to know if there is anything that can slow or calm this and If u know what this is can u plz tell me thx!