Hello Overit,
I agree that some concern may be relevant following your increased post exercise symptoms. Shoulder reconstructions are potentially at risk of injury at the four month point as symptoms tend to be minimal however tissues are still healing. It is difficult to make accurate comment as I do not know the progressions undertaken during your rehabilitation. In general terms, progressions of time, weight, repetitions etc should not exceed !5% of the current level until you feel that the exercise is atv a comfortable level then increase again.
If your rehab only included very controlled gym type exercises, it can be risky progressing to go surfing and swimming in an uncontrolled manner. Pool swimming at a low initial level would be safe, building strength, endurance and control, then progress to surf swimming then a further progression to board paddling then surfing. Exercise one day on one day off rather than two days in a row allows recovery.
It is possible that your physio is correct regarding inflamed scar tissue, although I prefer that my patients try to avoid any activity that causes discomfort to last longer than 2 hours. Two weeks of irritation is excessive. Inflammatory change post exercise then excessive rest can cause tissue tethering, although loss of movement range usually occurs at the same time.
To allay your concerns and ensure correct diagnosis then permitting the right rehabilitation advice you would be best advised tom see the specialist again for a reassessment. If the labral repair has partially failed, it is better to find out earlier rather than later.
Dependent upon the reconstruction undertaken, the specialist may advise an ulktrasound scan, cortisone injection, non steroidal anti inflammatory medications or perhaps MRI if the anchors are non metallic. The ideas mentioned are only suggestions based upon limited information. Other options are possible.
Hopefully the above info is of some help. I do not want to give actual exercise advice as incorrect suggestions may worsen your condition. If you have further info to add please let me know.
Good luck.
Cheers,
MrPhysio+