Ugh - I feel your pain ... literally! I had a serious hip injury last year that I tried to train through and ended up resulting in a Grade II hip sprain. Downtime wasn't TOO terrible ... I had a stress fracture in my opposite ankle that I was also dealing with at the same time, so I was off my feet and then on non/low-impact activity for almost six weeks before I was cleared to run and other things again.
I was able to keep up aerobic endurance by using the recumbent bike at the gym until I was fully cleared, and even to this day I still do my PT-prescribed stretches with my resistance band before and after any kind of training.
How does the pain feel? Like in the joint or could it be outside like Bursitis? Anyway, if your gut is telling you to take a visit to the sports medicine doctor, it's probably best to listen.