SLAP tear in left shoulder....

Yup, been there.  Did it weightlifting...weird feeling when your shoulder partially dislocates.  Interestingly I had no pain, just the fact that it would keep happening I decided to do something about it.  I waited 5+ months before I had surgery (under the watchful eye of my dr).  That was May, and I started swimming in Aug (breaststroke & kick drills only).  Did therapy for about 2.5 months.  Doc says the shoulder is still pretty tight considering how little he did.  I can swim fine, a few quick jerks in certain directions still provide a bit of tingling pain, but nothing serious (or that requires any type of med).  I started doing easy shoulder workouts at the gym and she is definitely sore, but nothing unusual.

Depending on how bad you tore it, which you'll learn from the MRI, will depend on the extent of recovery.  Unlike my rt shoulder, I was far more conservative in rehab because I wanted to get back to doing tris.  I was told that I was highly likely to stretch out the sutures and the shoulder again (I'm also hypermobile w/multi-direction instability) and would have to go through the surgery again.  Hopefully not before I manage to damage some other joint in my body.

2 feet down, 2 shoulders down.....maybe knees next???

Yep.

SLAP tear of the left shoulder.  Partial Labrum tear.  AKA the bicep tendon.

Interestingly, the MRI was not conclusive.  It had healed up enough to sit down on the bone, so the contrast dye did not get underneath the flap.  It was the surgeon's physical examination that made the diagnosis.

Once he got in there during the surgery, he found I had torn it half way off the bone.

Surgery fixed the tear.  No rotator cuff damage.  In a sling for about 4 weeks.  PT helped get range of motion back through about 3 months.  Then you can begin to build some strength back.  You'll be fully atrophied on that side.  You'll have most strength back in 6 months.  But it will probably be a full year before you're fully back to pre-injury level.