My husband purchased the vapor cigs, he also will wear a patch at times and smoke all at the same time. He refuses to admit to his Dr that he still smokes, he thinks he's fooling him. My concern is that he's getting too much nicotine. He's had a horrible cough off and on for at least a year, the dr gives him meds but it never seems to clear up. Could he be getting too much nicotine ? He's also very lethargic most of the time and thrashes in his sleep all night. Any suggestions ? He just gets irritated by me. Thanks