BB the answers to your questions:
1) You're probably feeling down due to alcohol withdrawal, which may be a sign that it's time to think about your drinking habits.
2) It's unlikely that the alcohol is making you feel rough, could it be a digestive issue?
anyway, time for a
Pinot
Post script-just been in the Co-op for a can of stout, (for my beef stew) and had to wait 5 minutes to be served, apparently illegal to sell it me before 8am !!