In reply to purplemonkeyelephant:
My experience of injuring the same thing, and seeing a physio, is having the physio target the injury site with thumb friction-ing to break down the scar tissue, and being given ultra sound and exercises to make it as good as new again.
I've torn a couple of ankle ligaments, on different ankles, and the one which didn't get physio treatment (as an experiment to see if they do help) still isn't quite right in being pain free but a definite weak point, while the one which got physio isn't ever thought about. I need to get round to going about the untreated one.
My subjective experience is that physio does help, and that honest ones won't just treat you too, from having just remembered going about a hamstring injury, and being told I'd be fine if I was a little bit gradual on it for a bit.
If you've focused on nutrition already, physio may be the missing ingredient. I found I could attend every other week because that was what I could afford at the time.
Post edited at 13:36