Poor Baby. You are the 1st on this site to link the Covid vaccine with vibrations. I have no idea if they are linked. I wonder if anyone has had the vibration without having had the vaccine? I had my 2 Moderna shots in Feb and March but did not start the vibrations until early this month (July). They start in my feet and move up, and yes, stress does seem to exacerbate them. Sometimes I have no fine motor control in my hands. I have found that sports electrolytes and minerals supplements alleviate them for for a few hours. Do you also have tinnitus (ear ringing)? Many of us do. Mine stated when I was ~17 (Yrs ago) so cannot be linked, tho it is getting louder. Rx meds don't help and some have dreadful side effects. Try the mineral supplements. I hope they help. Good Luck. One lady on Connect said hers stop for weeks and/or months then start again.