Needing a wee TMI

Ok so I feel like I'm bursting for a wee and my bladder is going to burst but when I get to the bathroom it's trickles out really slowly and is the tiniest amount.... It happens Everytime. I don't have a water infection I had them checked last week and I'm not in any pain. Just wondered if anyone else had this strange symptom? It feels like my bladder is the size of a pea!