This morning I had a horrible Charlie Horse on the back of my left thigh. After it went away like 10 - 15 minutes later I got a subtle achy pain. Now I've had the pain for about 12 hours. Nothing seems to work. I've iced it, since it's swollen. I've used that pain relief cream. I even took a vicodin and it's still as painful as ever. Now it's spreading across my whole leg and moving toward my ankle.Any suggestions?