Hi Cliffrocky86. You have done well. It all goes with time bilateral is a one shot rehab scenario as I have found out but slowly and slowly you get better.
If your having these issues at nine weeks that's cool it means its all starting to work so look forward to the future of change is all I can say from my experience. It is joint replacement and if done well by the best it will be bullet proof mark my word.
Takes 2 years for a good result so if you get within that and back up and running before 2 years awesome. The massive issues surrounding FAI and it own issues is complicated but if the joint is done well the body slowly adjusts to the changes. The tendons and muscles have to retrain and strengthen back to normal and this takes time inflammation and more time. They also have to move across a lot of structures.
As I have said on other posts it does help to be on a better nutritional diet and this rockets you along. That also is my own opinion. Don't over do it but little bit by bit and one leg by one leg. The changes from FAI muscular issues have to happen otherwise there would be no point in joint replacement.
eg: even my feet have to change due I could not weight bear properly on both feet and was on crutches for 8 years the tendons, ligaments, muscles all get a rev up swell strengthen then get used to it again. Same as my knees so massive changes.
Having FAI is an issue in itself then needing joint replacement to sort it out is another but by having resurfacing you have given yourself the best shot at a really good joint so don't be too hard on yourself it does take time.
Hope this helps Cheers K