Have bad cold. Ears hurt, throat hurts, all I want to do is sleep. Should I get checked out?

For certain symptoms. Cold's are viral infections that usually take 5-7 days to go away (the congestion and cough can last longer). I would get checked for fever greater than 103.5, change in vision (fear of light), stiff neck, unable to eat or drink (dehydrated), shortness of breath or if you feel you are significantly worsening.