I have been on citalopram 20 mg for quiet awhile but this past year with Covid, my husband’s health and losing my brother quite suddenly has really stressed me beyond belief. I have had this little irritating cough which comes and goes. I have all my blood work done and everything was normal. Now someone says to me you should get tested for lung cancer which has now put me in total stress. I literally do not know how to bring my levels downs. I have tried exercising. I just keep going to the dark side. Any suggestions.