Clavicle Error - Broken Collarbone

Obviously seek professional opinion... But...
You're going to have a tight spot in your shoulder. Stand in front of a mirror and drop your shoulders as deeply as comfortable. Slowly try to move your arms in symmetry across the widest range of movements you can imagine and see where the shoulders start to act differently. For instance, with your palms facing your thighs, lifting your arms may see your weak shoulder rise.

The NHS physios gave me a stretching programming that was not fit for purpose. I practice Ashtanga yoga at least once a week and still it is not enough to suitably restore full mobility to the shoulder. You need to give it a huge amount of patience.

One exercise that really helped me was interlocking fingers behind the neck. Start with elbows touching in front of your head. Lye down and slowly drop your elbows to the ground - again symmetrically. The weak side will likely not want to make it down without the shoulder coming up and rotating. When I was super stiff the weight of my arm alone was enough to stretch it out; if it is for you, see if you can hold that for 15 minutes. Your arm may be jelly for an hour after but a stretch like that can have incredible results.

Feels like ive taken a step back. Shoulder/upper arm strength dropping out at random points of stretching/rotation. On bicycle suddenly arm gives out on a turn, very scary. When lifting beer bottle to face same thing happens, also scary. Doesnt matter what the weight is so it speaks of a rotation problem rather than strength. Cant understand whats happened as been back on track for weeks/months now and just waiting for an appointment to have the plate and hook removed. Getting frustrated now and angry at negligence of driver for doing this to me back in Feb, whom I previously had little ill-feelings towards.