 [ Symptoms ] i have frequent miss periods my period came for 4 months straight my period is late the 5th month can i be pregnant  i never had my period 4 months in a row in years i also became sexually active 4 months ago with my boyfriend i always used a condom but i do not take birth control i show nor feel no signs of pregnancy but i am stressed because of grad school i am also overweight and weigh 270 pounds [ Disease ] true asthma is an allergic disorder smoking can cause an asthma like condition called emphysema or copd chronic obstructive pulmonary disease as well as cancer of course only a fool would choose to smoke