I got the SeaLegs five weeks after my TBI and stayed with me

It gets noticeable when I get out. I tried to go for a walk few times around the block and thought going to pass out with heart beating so fast and nausea. I did all the ENT tests, MRIs, CT scans and everything came out ok.
Some docs call it anxiety, some Meniere's etc., Since I have to pay so much attention not to sway it gets exhausting. Still some friends and docs notice and say I walk like a very old man. I tell them, I know many old men who walks even runs better than me. So don't compare
For me it is not medicines doing it. It can be from neck or vision or ear issues or from brain itself. Who knows?
Cheers.