Hi, long time no see, thank you for coming back to update the community!
I never really know what to say when someone finally finds their answer or in your situation answers, on the one hand i'm pleased for you because you are no longer stuck in medical limbo but on the other, well it just sucks to be honest to hear you've been diagnosed with not 1 but at least 3 medical conditions, 4 if you count the brain cyst-tumour, that truly isn't fair!
In a lot of ways Lupus is one of the closer MS mimics, small fiber Nueropathy can cause similar issues to the nervous system too and with Sporadic Hemiplegic migraine symptoms happening on top of everything else, it's no wonder the road you had to travel before being dx was harder than it usually is, overlapping conditions makes dx's all the more complicated with all the symptoms you were dealing with confusing the diagnostic picture...
Diagnosis is not the end it's only the beginning, so i wish you all the luck and inner strength for this next chapter of your life.....JJ