I was dx with FND years ago after various tests ruled out MS.
Main symptoms for me are ataxia and slurred speech. It started after a virus and never went away. If I get over tired, or am coming down with a cold, or any other illness the first thing to go is my balance, along with horrific level of exhaustion. I also can't see films at the cinema in 3D and sometimes strip lighting also causes me problems.
I've managed/ignored it for nearly 15 years but in the last year developed constant myoclonic jerks at night so recently saw a neuro again. A basic blood test showed I have been B12 deficient for years and having been on B12 since June my myoclonic jerks have improved a lot. The ataxic episodes continue.
Managing means DIY... doctors are still inclined to be dismissive... it's a bit of a wastebin diagnosis as far as most are concerned (not all, to be fair) ...a bit 'if we can't see it on a scan or blood test it must be all in your head'
Pacing... not really . I've been living with it for over 15 years now and while at it's worst I was unable to walk (couldn't balance!) I have found that fresh air, exercise, reasonably healthy eating and focusing on getting through the day, is better for me mentally than consciously pacing myself. When I'm ill, ok I rest. If my balance goes, then a stick, or if really necessary, the wheelchair, comes out.. sometimes long days out I need to sit for a while but I genuinely feel that cracking on with life is important... and also the doctors don't treat me like a nutter (which sadly I have experienced!)
But that's my approach 😆..everyone is different. There have been points where I thought I'd be disabled for life but I'm a stubborn sod!