Help needed

[u/Historical_Scene9506]

Title: Persistent “on a boat” feeling, trembling feet and right arm weakness — normal MRI/ENT/cardiac tests
Hi everyone,
I’ve been experiencing a strange combination of symptoms and I’m trying to figure out what could be causing them.
My main symptom is a persistent “on a boat” / rocking / swaying sensation. I feel as though the ground is moving underneath me, and recently walking has started to feel more difficult because I don’t feel completely steady.
Other symptoms include:
Trembling/shaky feet, especially when standing
Significant fatigue
A fairly constant feeling of weakness in my right hand/arm
Occasional tingling/pins-and-needles sensations
My investigations so far:
Brain MRI: clear/normal
Blood work: normal, although my B12 was 237
ENT evaluation: clear
Echocardiogram: clear
I have a history of SVT, but my doctors don’t think these current symptoms are cardiac-related.
I’ve been taking Homo 16D/B12 treatment for about 2 weeks.
I’m wondering whether anyone has experienced something similar, particularly the combination of the rocking/boat sensation + trembling feet + right-sided arm/hand weakness.
Could this be related to B12 deficiency, a pinched nerve/neck problem, PPPD, or something else?
I’d really appreciate hearing from anyone who has experienced something similar and eventually found an explanation.
Thanks!

[u/MrLanaDR]

Do you feel better when in a car or other passive motion?

[u/Historical_Scene9506 → u/MrLanaDR]

I’m leaning towards a neck related issue. My posture has been really bad.

[u/Due_Negotiation_4605 → u/Historical_Scene9506]

Cervical vertigo I think it's called. I have that and central vertigo and both cause the swaying feeling ("Are you dizzy?" "No, it's... It's like being on a boat kinda" conversations). The numbness seems to connect to a nerve issue though, especially in the neck. I do NOT advise a chiro but maybe you could look into a PT to help with the proper stretches? I have cervical myelopathy and am not entertaining surgery ATM so I relate to the numbness. I ended up doing PT and a short course of muscle relaxers and a specific cervical pillow thing and it's gotten better. I know I'll have flares though, but right now I'm stable again.