I do not have the listed conditions, but sometimes suffer palpitations, it comes with the CFS, as do a range of other issues i.e urinary frequency. I have been sleeping so well with this medication I want to continue it, I have had no 'hangover' feeling, perhaps a mild disruption of usual bowel motions, but that also comes with CFS. I have been using it for about a month, what should I watch out for? I take no other medications except of Hawthorn Berry tea.