sorry to hear you're going through this. it sounds like you did a great job of rehabbing on your own though! the shoulder is a very complex structure. if in fact you did injure your rotator cuff it can take a long time to heal. aggravating the injury through usage can make the process slower. however it's possible the problem isn't your rotator cuff at all. there are structures called " bursae " in the shoulder too. these are leathery sacs of fluid that help lubricate the joint. it's possible to tear or otherwise injure a bursa sac around the shoulder which can lead to the type of symptoms you're describing. or you could have injured a ligament. like i said the structure of the shoulder is very complex. whether it's your rotator cuff a bursa or a ligament the main healing factor is time. obviously something about the puck-shooting motion and force is aggravating your injury which may increase your healing time. if the pain becomes chronic or you feel you've re-injured the shoulder then it's clearly time to have the doctor look at it again. after all your great work rehabbing the injury you don't want to now undo everything! hope this helps.
4 1/2 months ago i crashed my mountain bike on the trails. i feel good but i still get oreness and frontal shoulder pain. xray showed no breaks doctor said small chance of rotator cuff damage. my arm was not extended. since my health insurance covers crap i never gota mri i did therapy on my own. i am pretty much pain free now. i am ready to go back to hockey but when i shoot i feel some pain in the front of my shoulder. this is the only motion where i fell any type of pain. i would say i a sharp pain and it a tad bit of a sore feeling. my shoudler defintly cracks every so often and i never had that before.