My husband is taking dilantin , rivastigmine , anticuagulant, acid folic , vitamins etc. He start taking these medication after a brain surgery, because a coagulus he had in his left side of the brain. His surgery was in december/ 2012. He is feeling now, shaking or tremor in his hands and feet. Today he was shaking all his body and feel weak in his legs. Do you think is a consecuence of these medications?