Sleepless. Please, please step away from Google.
I worked as a research scientist for years and I can tell you that if you gave me any (literally any) random assertion, I could go find you a paper that backs it up. When I read a paper I look critically at the design, the methodology etc, and you know what? Often I think 'well that's a poor bit of work...' Just because it's published, doesn't mean it's gospel!
It's NOT individual papers we use to drive public health policy , it's masses of them. Metadata, that takes years and hundreds of studies to collect. Theres some really poor quality research out there as well, and even good research can be wrong! A 95% confidence interval is often used. Think about what that means - out of every 100 papers, five are wrong because that's just how statistics works, not because of any flaw in methodology! There are even papers out there 'proving' that fags are absolutely excellent for your health :)
And don't even get me started on sample sizes, incorrect study design, power of studies, etc (actually my dear I have the perfect cure for you...I can bore you rigid with statistical models and drive all anxiety out of your head.)
I know anecdotes aren't data, but listen to all the ladies who posted above and believe me - if getting pissed in the first couple of weeks did damage, we'd be doomed as a nation.
I often knock cbt - it's not great for exploring childhood trauma for example, but it's really good at dealing with intrusive thoughts. The key is practice and repetition. For the next hour try this. First ten minutes you articulate to whoever is with you your fears. Now, after that, you're going to try to knock those thoughts on the head. Think of something emotionally neutral and a bit daft. A frog perhaps. Now, every time you start to obsess, think of the frog. Say 'frog' out loud. You're trying to derail your train of obsession.
It's not easy to do and anxiety is really tough, but with help and practise, it WILL get easier. Please see your GP and don't minimise your symptoms. Take hubby with you. Ask for help. Be polite but pushy.