Should I call ambulance???

I've not been able to leave my house for 2 days now due to sudden urinary incontence. Today has been particularly bad I have not even left my bedroom as every time I stand I literally wet myself - I have no control over it. I live alone and there is no one I can really call to help. I'm very worried as nothing like this has ever happened to me before. I wet the bed several times in the night and I have had to change my bottoms 3 times already today as they've been soaked through. What can I do? somebody please help. I'm running out of pads also