Can sinus problems make your head feel like it cant think straight and is fuzzy?

What is the most likely cause of this? What is doxycyc mono 100mg used for? How likely is it that a pregnancy test is wrong showing symptoms no period negative test? Are anger issues learning disabilities? Why can't a uncircumcised man enter the cervix? What is the normal final resting place for feces? Can aphasia occur for no apparent reason? Why do guys have ball sacks? What is the prognosis for seborrheic dermatitis? Can the analysis of a karyotype reveal point mutations? What would happen if the temperature controls failed and body temperature became abnormally high? What is hairy twin? What helps get rid of little rashy looking pimples? 7wks pregnant bleeding for a week with clots and cramping which is getting more severe what does this mean? Chemoreceptors that regulate breathing are located in the? When was Macmillan cancer support founded? Are their bout 7 percent of those who try in any one year to quit smoking cigarettes on their own actually succeed? Which test must be performed on whole blood-? How was leprosy dealt with ancient times? Why does your Achilles hurt when you point your toe Also it hurts when you squeeze on both sides of your foot about an inch below your ankle It feels awkward when running Do you know what this is?