I don't think there's much physiotherapy can do for this, only that you can get a solid diagnosis from the therapist and not the assumptions of a GP. What you need is the right stretches to stop whatever's gone from healing up shorter than before. If it's muscle damage you'll only be looking at a short lay-off, but if you've damaged the collagen that connects muscle to bone be prepared for up to 4 months off. If you try and get back too soon you'll just screw it up again and end up back where you started.