Need advice (anyone else going through this?)

The past couple weeks I've felt this weird pressure in my vagina, it's not high up it feels very low. Sometimes it hurts and other times it doesn't. It hasn't happened for about a week until last night. It started up and it never went away (it's still happening right now). I called the doctor this morning thinking they would tell me it's stretching or that everything was okay. Instead they told me to increase my water intake and if I notice a change in discharge or blood to call them. Since then I've noticed a slight increase of discharge but I don't know if I'm overreacting or not. Anyone else go through this or know what I should do?