I agree with SoberJennie on this one. If the "bottom" is that point at which you decide you've had enough and are ready to make lasting changes, then OK you can call that the bottom. The only true bottom is death. One can always sink a little lower on the way to that.
Great job on making it to day 5 (I'm on day 6). It's going to take a consistent effort and commitment to stay sober. It's as simple as that. How you choose to do it is up to you, but please don't just try to ignore it and hope it goes away. It won't. You have to be vigilant. You have to work at it. Best wishes. You can make it.
As far as some of the symptoms you are experiencing, a visit to your doctor wouldn't be a bad idea.