Daily enemas are not healthy, and can cause your intestines and colon to not be able to work properly anymore. Plus, coffee enemas cause caffeine addiction, which is probably what is causing your problems now. The caffeine is absorbed very quickly into your system with the coffee enemas, and causes addiction and if you stop suddenly, you go through withdrawals just like any other drugs. Nausea and migraine-like headaches are two symptoms of caffeine withdrawal.
It always amazes me how people let themselves think that doing an enema every day is healthy. Unless you are fighting cancer, it's probably one of the worst things you can do to your body. Depending on how long you've been doing them, your colon may be permanently damaged and you may have to be laxative or enema dependent to even have a BM anymore.