 [ Symptoms ] what would cause a 61 yr old male to all of a sudden be terrified to be alone  is for some reason terrified to be alone he often outa the blue starts crying when asked y he says he do not know he does not have any physical pain he do not have any viral or bacterial sickness or symptoms he does have bad anxiety loss of appitite and sleeps almost constantly he has become really needy im guessing anxiety and depression but why or how just like that causing such dramatic change in behavior in a matter of a few days [ Disease ] the us probiotics org recommends choosing probiotic supplements with adequate research behind the specific microbe strain used in any given product just because research shows one strain is effective does not mean it applies to other strains as there are over 400 if you are looking for relief from a gastro intestinal health issue make sure the probiotic has been studied for that specific disease state you can call the company or check their website for the research they have conducted always make sure your doctor knows what supplements you are taking for more details on probiotics see this article <link>