If you are eager to know the symptoms of sinus infections then you must know the facts about the sinusitis. You must know particularly when it comes to the symptoms of a sinus infection. You will feel like you just want to stay in bed and you feel like you do not have the energy to go about your daily routine. In addition to having a headache that usually occurs the moment you have woken up from a sleep, coughing or sneezing, and feeling weak or tired, another symptom of a sinus infection is that you should watch out for are watery eyes or the swelling of the eyelids