Switching hospitals in London, UK?

Hello everyone—just wondering if anyone has any thoughts / tips. I was diagnosed with MS in 2005 and have been on various DMTs since 2012 under the care of a hospital in London (which I felt was good when I first went there). I feel very sorry for them but over the last few years the relevant unit seems to have become really stretched (probably due to the prevailing funding squeeze on the NHS?)… my consultant retired a couple of years ago and I haven't really seen / talked to anyone about my current health and what the options are for the future regarding treatment etc… over the past 9 months I've experienced what seem to be relapses and have had an MRI but haven't had feedback about what this shows. It feels like I’ve been parked on a particular treatment and left to one side… I wonder if anyone else has had similar experiences? Or if anyone can recommend a hospital / consultant in London to contact? Many thanks for any help, bye for now!