I've a huge headache today that's forced me to stay in bed all day. I'm worried that It's a behcets headache and the sign of things to come. To date my headaches have been once every 8 weeks and not so severe to disable me like this. This time however i do have a temperature of 38.9 and have a cough and achy arms and legs which makes me think this is a virus rather than behcets. What do you think? Are your headaches accompanied by a temperature?