Welcome, MrsPea.
I do hope your NHS appointment comes through quickly. Like you I saw ENT’s who didn’t offer much help.
Like some other people on this forum I see Dr Surenthiran. His NHS clinic is at the Medway Hospital in Gillingham but he has monthly private clinics in London. This is one:
https://www.bmihealthcare.co.uk/consultants/s-s-surenthiran
It is in Blackheath. I’m pretty sure he also runs another London one which is more central I will link if I can remember it. You can self refer. I was asked to draft a concise history to bring or send in advance. I saw him at Tunbridge so it was slightly cheaper. I think the initial consult was just under £300 iirc. Follow ups were just over half that. I saw him once for a follow up but by then had got my difficult GP to refer me on the NHS to Medway where I saw him once in person and my 2 follow ups have been phone calls so that I don’t have to travel for a short chat.
I’m sure others on here have seen people at Queen’s Square, the search function at the top of the page will flag up those threads.
This is an old post but it eloquently explains what happens at a Dr S initial consult (my one about a year ago followed this same pattern)
Dr Surenthiran also has clinics just outside of London here:
https://www.spirehealthcare.com/consultant-profiles/dr-shamuga-surenthiran-c3105908/
A lot of Queen’s Square specialists run their private clinics from the private wing :
https://qsprivatehealthcare.com/experts/
Good luck