I bought some Ibuprofen last weekend, and I've been taking that each day, normally in 2 x 200g doses. The first time I took it, I felt a bit dizzy almost immediately, but I don't know whether that was a real effect. For most of the week I've found that I'm ok during the day and the pain just peaks in the evening; my working theory was that it was triggered by yawning, when I got tired. So, two pills before bedtime seemed to keep it under control. Unfortunately, it's now progressed to the point where the pain is pretty much constant (about 7 out of 10 on my subjective scale), and I'm on the maximum dose of painkillers, but they're not helping much. E.g. last night I got up at 02:30 because I couldn't get to sleep, and took two pills. It took 10-15 minutes for them to have an effect, and then a further 10-15 minutes for that effect to wear off; it was then another 3½ hours until I could take any more tablets, and I'd just had a third of my daily allowance. Based on my past experience with analgesic gas, local anaesthetic, and general anaesthetic, I think that my body has a fairly high resistance to being numbed. That's probably useful if someone tries to attack me with chloroform, but it's less convenient now. Alcohol makes it easier for me to sleep, but doesn't directly affect the pain. Anyway, I'll see what happens on Tuesday, but right now I'd seriously consider yanking the tooth out myself with pliers if I thought I could manage it.
So, my advice to the rest of you:
a) If you're not currently signed up with a dentist, then fix that. Call around tomorrow morning, and keep going until you've got one. That way, if you have an emergency later, you can bypass this step.
b) If you get toothache, arrange a dentist appointment right away, rather than waiting for it to get worse.