tense up,
tense cause to be tense and uneasy or nervous or anxious; "he got a phone call from his lawyer that tensed him up"
change state,
turn undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"
vege out,
vegetate engage in passive relaxation; "After a hard day's work, I vegetate in front of the television"