I've been suffering from severe insomnia for the last 20 years or so. I tried pretty much everything under the sun ( including tests for sleep apnea, wich I don't have) both pharmaceutical and natural with very little success, with a few exceptions. And I really mean almost everything.. If you can name it, I have probably tried it.
So far, the only thing that have been continuously succesful in providing me with a reasonable quality sleep is the antihitamine/anticholinergics category. Namely : Diphehydramine, Doxylamine, and Cyproheptadine. I've been cycling these 3 throughout the years , while constantly trying new things at the same time. Diphenhydramine is probably what have worked the best, as it leaves less of a hangover upon waking up than the other two. Although they all have been successful , with varying degrees, in allowing me to get some kind of refreshing sleep.
After all these years of experimentation, I have now pretty much given up hope on finding something else that works as good as the antihistaminics, and now considering taking them for the rest of my life .
So : Is there any reason this would be a bad idea ? Is there any confirmed nasty consequences of using them long-term, considering that constant and daily lack of sleep also has terrible consequences on me ?