[anna]

i have a 1 year old and few months boy........few days ago out of nowhere he started to shake and act like hes scared...he didnt want me to hold him or nothing.....runs under the couch and shakes....i took him to the vet and they said hes fine and that there is nothing wrong with him.....by that time he stopped shaking.......today the samething is happening.......what should i do? should i test his blood? does anyone know what it could be?
please let me know.......
thank you
anna