Recently I had some sort of mental breakdown

and I'm trying to drag myself up out of this. One thing i can't figure out though....I shake (tremble) constantly now. ESPECIALLY right after I wake up! Even a 10 minute nap is enough to greatly increase the shaking. This is a very disturbing feeling which can often lead me into an anxiety/panic attack almost immediately upon waking. I don't use any kind of caffeine and the only meds I take are xzanx and things of that nature (not a lot, usually only half a pill).
has anyone else had this??? It scares me bad!! Please help, tell me this happens to us nervous types a lot and I'm not the only one!
(FYI-I've had panic attacks as I'm waking but usually it's the racing heart. I've had shaking/trembling upon waking but it was only occasionally and only after very heavy sleep. This is constant!!) Can a severe mental break/meltdown/burnout cause some sort of actual nerve or neurological damage, maybe??