Pulled Muscle while running?

Well, here is a new, if not desirable milestone for me:

My first exercise related injury.

My lift hip muscle (and I'm sure it is muscle not joint) is killing me. I was doing my cardio last night, intervals on the treadmill (going from a 4.5 jog to 6.5 run for 2 miles, minus warmup and cool down) and did great, until almost the end. I had less than five minutes of intervals to go when my left hip started to hurt. I've had what I believe to be hip flexor issues on that side before, but this was worse. I was so close to the end, so I decided to finish out the intervals and cool down time.

I stretched after too.

But, by the time I got home (a 8 minute drive) I couldn't even walk on it. I've never had it hurt like this.

I have put some Arnica rub on it, and hot water massage. This morning it isn't quite as bad, but I still don't have the full range of motion. I can't walk normally, but have to use a weird motion with my leg out slightly to the left side, and hobble around.

Oh joy.

So, my question is, I know jogging is out for the time being, but would the recumbant bike do any damage? I really don't want to miss any workouts, even if I have to modify them back I still want to get something in, KWIM?