Random Weak Bladder

I am overweight and normally have to visit the loo more often than most, however I used to be able to hold it fairly well for a length of time. Just lately, when I need to go I start dribbling uncontrollably, and I cannot stop. This happened today in a lift, I suddenly needed to go as the lift was reaching the floor I wanted. I ran out of the lift weeing as I rushed to the ladies. When I got in the cubicle, I heard 2 young girls laughing loudly outside the toilets, they saw I had left a trail, it was awful. I heard them say that fat woman has p---ed herself so I stayed in the cublicle for ages till they had finally gone

Fortunately this hasn't happened at work but my supervisor has commented on the amount of times I nip out to the toilet, when she asked me why in front of the office, I just went crimson and stuttered nonsense. She told me to concentrate more on working than nipping off for a skive.

This has only started happening since I have stopped satisfying myself sexually, could the two be connected?