Answers:
colds are cause by a multitude of different rhinoviruses (rhino is latin for nose) so the first symptoms of a cold are roughly nasal, resembling sneezing, runny antenna, congestion and so forth.
itchy throat, runny eyes, sneezing, tired.
This one I know. A sore/scratchy throat, runny trunk, slight restlessness, headache. Hope you don't enjoy one!