What's good boys! So I was taking HGH as an attempt to accelerate a repeated knee injury (dislocation / MCL tears) - was on 2.5 IU/day for ~3 months, with enough stock to last another 4 months or so (mornings subcutaneous into belly fat mostly).

About 6 weeks in I noticed that my shoulders were feeling....off. I've never really had shoulder problems so it was odd but I thought maybe it was due to the fact that I'd been lifting a lot less in the prior months due to the latest knee injury - so I tried doing a lot more intentional stretching and shoulder strength training to try and compensate. It started as a subtle muscle ache and discomfort lifting my arms up to-and-beyond parallel to the ground (think shoulder presses). Towards the 3 month mark, it had gotten considerably worse to a point where I was genuinely freaked out - I'm 29 and my shoulders seemed to be rapidly degenerating before my eyes. They were becoming noticeably weak and sore, and just about any kind of upward movement (any direction really) started hurting pretty badly the higher I went (even without holding any weight). It occurred to me that it could the H, so I totally stopped and within ~2 weeks, my shoulders were back to 100%.

I had done a bit of research before getting into all this, and had never really heard about anything like this. Even after the fact I've done some digging and can't turn up much material describing my situation. Has anyone had any kind of similar experience? The fact that the symptoms completely went away seems to indicate that no lasting damage was being done, so I'm considering finishing off the rest of my supply so it doesn't go to waste...

More context - I'm using Jintropin (Chinese Pharma grade) which from everything I can tell has had great reviews. Thanks in advance for any help guys!
-J