Yeah I would go for that and get it on the dark web if you can actually source it there. NHS sounds like it has been massively unhelpful to you and like they want to make you live on benefits or something.
Though some things to consider:
- are you actually going to be able to receive deliveries of it long-term? The post office is probably quite good at detecting when medicine is in a package and then the state is probably very tough on denying any alternative medicine sourcing.
- Is it addictive in any way? Have you got the ideal dosage worked out?
Once you've got an answer to those questions, go for it.


Also in the mean time, this channel (Dr Rowe) has guides to relieving various nerve and muscle pains, and it seems to be effective for a lot of people who are being let down by doctors. Have a scroll through his channel and see if your area of pain comes up.