Please someone help.

Ok so today I've been having a huge urge to pee every 20 minutes. Already as it is when I go to the bathroom I spend 10 minutes in there just sitting. It burns when I pee and I don't know what's going on. This is the third time it has happened and when it happens it usually lasts a week. Help. 😭 It hurts and I don't know what to do. I'm stuck at work.