What Causes Tightness In Head With Severe Headache?

my daughter's forehead feels tight, has had severe headaches, can sleep for long periods of time and may have had night seizures. She said she has had dreams of having a seizure and biting her tongue. When woke up, she had bit her tongue and felt nausia. She works 3rd shift and said she sat down and was not tired, but woke with stiff legs and body dispositioned on the couch, and wondered if she had fallen asleep or had a seizure, her legs were still trembleing when she supposedly woke up