Hey Rumeke,
Interesting problem and there are some great answers why you should be able to continue taking Omega-3 fish oil up to 24 hours prior to surgery without risk of adverse outcomes due to excessive bleeding.
Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

"
No need to stop fish oil before surgeryThe evidence strongly confirms that it is not necessary to decline the anti-inflammatory and other benefits of fish oil omega-3 fatty acids prior to surgery, even when combined with other medications that affect bleeding."
"In the populations considered, from moderately to severely diseased, at home or in ICUs, no sign of increased risk of clinical bleeding has been reported. The doses of n-3 LC-PUFAs used ranged from 1.5 to 10.2 g/day. There were no statistically significant changes from baseline for the coagulation parameters (PT, PTT, aPTT). There was no increase in bleeding-related events, even with the concomitant use of platelet aggregation inhibitors such as aspirin, VKA or clopidogrel."
We've know for a long time that Omega-3 fish oil was an important part of the anti-inflammatory regimen's capacity to prevent CH. We've also found that trauma and surgery can reduce serum 25(OH)D3 levels by as much as 70% and well below the CH triggering level causing the return of CH. Accordingly, your shoulder injury and stopping the Omega-3 fish oil set up a perfect storm resulting in the return of your CH.
Sooo, you're doing the right thing by getting back on the Omega-3 fish oil and taking loading doses of vitamin D3 to get back to a CH pain free state.
If you haven't switched to the Bio-Tech D3-50 50,000 IU water soluble vitamin D3 capsules, now would be a good time to do so. You can order them from amazon.com or iherb.com at the following links:
Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

Bio-Tech D3-50, 100 water soluble 50,000 IU capsules
Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

There's no sense arguing with someone who is going to take a knife to you. . . so it's prudent to stop the Omega-3 fish oil prior to surgery. . . the only real question is when to stop taking it prior to surgery.
You can try to make a deal with your surgeon to obtain a lab test of your coagulation factors while taking the Omega-3. If there are no adverse indications, you should be able to continue taking the Omega-3 fish oil up to 24 hours prior to your elective surgery and resume taking it 24 hours following that surgery.
Take care and please keep us posted.
V/R, Batch