Seeking a second opinion

So 2016 has started off pretty well so far - albeit we are only 17 days in!

Thanks to the gym membership, and discovering how much fun racketball is, Pete and I have been going to the gym 2-3 times per week.  40 minutes of racketball and between 20-30 minutes on other kit (stationary bike, cross trainer, elliptical, rower, TRX stuff, etc).  Alongside that I have been running pretty consistently 2-3 times per week.  Starting at 1.4 miles and now running loops of either 2 miles or 5k.  One of my colleagues wanted to start up, so I have been running with him around Green Park, and also running from home on my own.
Pilates classes start up again next week too, and I am feeling the benefit of it all straight away - sleeping better, more energy and definitely good for my mental wellbeing.

There is one slight issue though.  Since I started exercising again, I am suffering with significantly increased hip and knee pain.  I have been wearing a knee support for racketball which really helps that, however when we were playing today I was really struggling with my hip.  I don't find it hurts when I am running or in the gym, however when I play racketball it has become more noticeable, and also it is back to occasionally waking me up at night.  Also post-exercise, it can be painful to walk and quite stiff.
I am going to sort myself out with a new pair of trainers for running as the ones I have now are the ones I did the marathon in and are getting a bit long in the tooth, however alongside that I think I am going to have to bite the bullet and get a second opinion on what is going on in my hip.  The previous surgeon signed me off from his care in spite of the fact that in the paperwork I filled out that day I had noted that I still suffered with hip pain daily for certain activities.  It might be that I need another cortisone injection in my hip, however I see that as a short-term solution only as there must be something going on in there for there to be significant pain still appearing almost two years post the labral tear operation.