Don't know what the cause is but I'm been experiencing internal vibrations in my body especially in those two legs.Taken PPI for like 4-6 days but of no use.Even my muscle mass were degrading like nothing.I find very soft or Looseness in my muscle mass i.e in my legs,chest,stomach,hands,etc.I can even pull or press it off.Those vibrations are like electricity flowing specially in those two legs.Apart from it I'm feeling weakness,vision loss,numb,breathing difficulty especially while reading or working. Please doctor, just try to evaluate this issue and suggest some medications as there were lockdowns.