I appreciate everyone's continued attempts to help. Last night I opened a beer and had a drink for the first time in 6 weeks. I felt instant relief. I also didn't feel the need to drink it quickly or to have more. In fact, after 2 hours, I had only had a little over half of it, and felt I was done and went to bed. I know that will change as my tolerance returns (probably very quickly), but I am not concerned with it becoming difficult to stick to one drink per day. If I start to find I want to drink more or start to worry I will not have the willpower, I will reevaluate the situation.
To answer a few comments/questions:
1. I'm a woman (check the text under my picture) and I live in Prague (I'm sure I've mentioned that - in any case it's in my profile).
2. Marijuana is legal here for medical purposes and not criminal for personal use. People smoke on the street and police do not bother them. You can have up to 5 grams without really breaking the law.
3. I have tried using marijuana but it doesn't help. Sadly, my unusual (hypersensitive/autistic) nervous system responds differently to it. It can help me sleep at times, but physically it only makes me more sensitive and more aware of sensory input. I quite rarely use it.
4. I don't drive or do anything else that requires me to be sober. It's even normal here to have a beer during working hours, on your lunch break, though I have no plans to do that.
5. Long-term health effects are something I'll have to keep in the back of my mind, but on balance, the present urgent need for a treatment for hypersensitivity outweighs the low risk of future health problems that could come from a small amount of regular drinking. On the other hand, I've heard that regular light drinking also has health benefits, so who knows.
6. Thief^: yes, I intend to treat the alcohol as a medication. Looked at through that view, it's actually less addictive and dangerous than most other types of medications that might be tried to treat this problem. For now I will stick to beer because I live in the country with the best beer in the world, and it's literally cheaper than (bottled) water. But if I start to find I have a problem with craving more, I will keep in mind the suggestion of using an alcohol I dislike the taste of.
Hypersensitivity is, sadly, something there is almost no research into that I can find. Most people still seem to think of it as an emotional/psychological problem rather than the physical/neurological problem it actually is. The reason seems to be that most sufferers are autistic, and since autism is still regarded as a "disorder" in its own right, all too often all the "symptoms" of that disorder are simply lumped together as "this person is autistic" and the person is often dismissed as disabled/broken without much thought given to how individual problems can be helped. This is made worse by the fact that the worst sufferers of hypersensitivity are unable to communicate verbally (and in fact hypersensitivity/sensory overload is the CAUSE of someone being non-verbal), so they can't explain easily that they are in pain and why. It's something I would like to try to change, if I can find a way to spread my information more effectively. But looking at communities of autistic people online such as wrongplanet.net, there are many autistic people who "treat" their hypersensitivity with alcohol for lack of any better way of dulling the pain. Most of them are not alcoholics, so they don't end up in my situation.
I suppose this whole thread was started due to my fear of the word "alcoholic" and all the stigma people attach to it. That to be addicted to alcohol is bad in and of itself, regardless of how much you drink, and you have to quit cold turkey and that's the end of it, no matter what. But if I am able to carefully control my alcohol intake, and if the alcohol offers me the enormous benefit of allowing me to live an independent, non-disabled life, whereas without it I would eventually become unable, lose my right to live in this country due to inability to work, get deported back to the USA, and either live on disability or go back to my abusive family desperate for assistance... Well, it's kind of a no-brainer, isn't it? And if you ignore the stigma, the emotional reaction most people have when they hear "alcoholic", and compare alcohol to, say, antidepressants, anti-anxiety medication, or tranquilizers, the side effects and addictive properties are actually quite mild as long as moderation is observed. No one would tell someone with major depression that they should stop taking the antidepressants that allow them to function purely because they are addicted to them (they all are) or because they have some negative health effects (they all do). The benefits far outweigh the negative effects.
So I'm quite satisfied with my final conclusion. I will drink, I will moderate my intake, and my support system of friends will keep an eye on me just in case. The alcohol really isn't hurting me, as far as I can see, and it's helping enormously.