Hey, seems like Diabetics seem to suffer from this. I basically had the same issue in both shoulders but on two different occasions. It's called capsulitis and most GPs don't know the diagnosis. Pain killers isn't the solution. I tried, it got worse. Mine got so bad that I could not move my arms up past the keyboard on desk level. Here in Spain they'll send you to physio so, I'm unsure what they do in the UK but I'd highlight how much you're in pain to the doctor and ask for a physio referral to the hospital or a clinic.
There's various treatments for pain and movement. Doing A LOT OF PSYSIO is sure fire way of getting rid of it. Privately you need to do it supervised so shop and ask around for someone good. The exercises are super easy and no real need for kit. There's various session based stuff involving heat / electricity stimulus you get in clinics and not elsewhere. That's all down to the diagnosis.
However, what I learned was that EACH CASE is unique and there's no catch-all do these exercises and it'll work. I have had 2 doctors giving different exercises 4 weeks apart in the same clinic. .
I found that having acupuncture is good psychologically. Seriously I didn't believe in it, but having a needle in the leg and able to move my arm freely and no pain made me feel I could beat it.
You need to do physio asap as the longer you leave it the more rigid it gets. You need to go to physio and do it everyday without fail for a few weeks to a month. I was in severe pain. Basically private route can make the public one easier and vice versa. Obviously there's costs associated.
I pushed myself a little more the second time around as I found other people in the class weren't improving, and faced with the choice of surgery or recovery, I opted for all go and getting myself better. I'm glad I did as it's not come back since.
After I recovered you have to lets say, keep it moving and something you enjoy. I started up dancing. locking as it's very shoulder and arm centric than with feet. Basically it made exercise and recovery fun and the great thing is, you can make up your own freestyle dances to any music. That makes it really versatile. Very crude description is its like Michael Jackson meets modern hip-hop. Here's how it looks
. Any dance warm up using top part of the body on youtube is a great way to keep loose
