Yes to continuing to try to work on this with PT. Surgery should be a last resort but I've had several patients that have come to me and eventually gone for surgery and have done very well post surgery. So yes, you need to find a doc that would consider surgery if needed.
Meanwhile, there are some bike fit issues that can be addressed, like a shorter crank arm length and a more upright posture.
This is the link to find a Bike PT in your state, if you're interested.
Living life like there's no tomorrow.
http://gorgebikefitter.com/
2007 Look Dura Ace
2010 Custom Tonic cross with discs, SRAM
2012 Moots YBB 2 x 10 Shimano XTR
2014 Soma B-Side SS